Shmuel

Nedarim 80~ Rabbi Yossi on Bathing and Laundry

Today, we take a deep dive into baths.

נדרים דף עט, א - פא, א 

ואלו נדרים שהוא מפר, דברים שיש בהן ענוי נפש: אם ארחץ ואם לא ארחץ ...אלא דאמרה הנאת רחיצה עלי לעולם אם ארחץ היום, ורבי יוסי סבר: ניוול דחד יומא לא שמיה ניוול

מעיין של בני העיר, חייהן וחיי אחרים - חייהן קודמין לחיי אחרים, בהמתם ובהמת אחרים  בהמתם קודמת לבהמת אחרים, כביסתן וכביסת אחרים - כביסתן קודמת לכביסת אחרים, חיי אחרים וכביסתן - חיי אחרים קודמין לכביסתן, רבי יוסי אומר: כביסתן קודמת לחיי אחרים

כביסה אלימא לר' יוסי, דאמר שמואל: האי ערבוביתא דרישא מתיא לידי עוירא, ערבוביתא דמאני מתיא לידי שעמומיתא, ערבוביתא דגופא מתיא לידי שיחני וכיבי

 

These are the vows [made by a wife] that a husband may revoke: matters that involve self-afflction. For example [a wife made a vow] "If I bathe and if I do not bathe..."

What could this mean? She said The pleasure of bathing is forbidden to me forever if I bathe today. And Rabbi Yossi believes that not bathing for one day is not called repugnance...

If a spring belonged to townspeople, [but it does not supply the needs of everyone, whose needs take precedence?] When it is a question of their own lives or the lives of strangers, their own lives take precedence;  the lives of their cattle or the cattle of strangers - their cattle take precedence over those of strangers; their laundering or that of strangers - their laundering takes precedence over that of strangers. But if the choice lies between the lives of strangers and their own laundering, the lives of the strangers take precedence over their own laundering. R. Yossi ruled: Their laundering takes precedence over the lives of strangers...

[The discomfort of not laundering clothes is greater than that of not bathing] according to Rabbi Yossi, as Shmuel taught: filth on the head leads to blindness, dirty clothes leads to dementia, not bathing leads to boils and sores...

Clean Body, Clean Clothes

The passage on today's page in the Talmud seeks to understand the Mishnah (learned yesterday) which taught that a husband may annul his wife's vow if it would interfere with her bathing regime and hence cause her to become, well, smelly and unattractive.  In contrast to this, Rabbi Yossi (a student of Rabbi Akivah and who lived in Israel in the second century CE.) taught that this vow cannot be annulled since he understands that it only prevents her from bathing for a single day - and this brief abstinence does not cause her to become repugnant in her husband's eyes.  In tomorrow's daf the analysis is completed when it is discovered that Rabbi Yossi, while not seeming to be bothered by a lack of one day of bathing, was indeed very bothered by a lack of clean laundry.  How bothered? Well, if it's your water and you only have enough to clean your own laundry or to give an outsider a life sustaining drink, guess who is going to be wearing some clean clothes! Rabbi Yossi was so bothered by dirty clothes that he valued them over life itself (so long as that life was not your own). It seems rather odd, does it not, for Rabbi Yossi to allow a wife to do without bathing for a day and yet hold clean clothing to be really important? To answer this, we need to dive in to the history of bathing.

Jewish, Roman and Early Christian Bathing Habits

The Talmud is replete with statements that emphasize the importance of daily bathing.  A תלמיד חכם (scholar) is forbidden to live in a town that does not have at least one bathhouse, and Hillel the Elder taught his students that going to wash in the bathhouse was a מצוה, since there was a responsibility to care for the human body, created as it was in the very image of God. Hillel seems to have left a cleanliness legacy in his family: his grandson, Rabban Gamliel (who lived in the early part of the first century CE.) was so in need of bathing that he allowed himself to wash on the first night after his wife died - an act that was understood to be forbidden.  In the Jerusalem Talmud, the precedent of Rabban Gamliel is further analyzed. When a rabbi developed boils during his period of mourning (which the Talmud assumes was due to a lack of washing) a certain Rabbi Yassa allowed him to wash immediately - "for otherwise he could die." Rabbi Yassa extended his ruling to allow bathing on (wait for it...) Tisha Be'Av and Yom Kippur - so long as the bathing was to alleviate discomfort rather than for pleasure.   

The famous Greek physician Hippocrates, (died c. 370 BC) wrote about the healing power of warm (and very cold) baths.  But as Katherine Ashenburg wrote in The Dirt on Clean, her definitive (and very readable) history of bathing, "...while the Greeks appreciated water...the Romans adored it."  The Roman desire of cleanliness and their culture of bathing is of course well known to anyone who has visited a Roman ruin in Israel, Italy or elsewhere. The focus on bathing seems to have changed with the fall of the Roman empire and the rise of Christianity. Ashenburg explains that since the first Christians were Jews, a way of distinguishing themselves was to ignore the Jewish laws of ritual purity, which involved so much hand washing and body dipping.  Although ritual purity is not the same as cleanliness, the two became linked, and with the opposition to the Jewish rules of ritual cleanliness, there rose a Christian opposition to bathing.  In the middle ages, some monastic orders allowed only three baths a year, "but monks whose holiness trumped cleanliness could decline any or all baths."

Jesus’ indifference to ritual purity accorded with what later became a wider Christian distrust or neglect of the body.
— Katherine Ashenburg. The Dirt on Clean (North Point Press 2007) p 54.

What few bathhouses there were in medieval Europe were closed during the years of the Great Plague, since the best science of the day taught that heat and water created openings on the skin, through which the plague would enter. Here, for example is Ambroise Pare (c. 1510- 1590) who served as surgeon to four French kings: 

They must close the public hot baths, because on leaving them the muscles and the general tone of the body are relaxed, and the pores are open, and so the vapour of the plague can readily enter the body and cause death at once; there are many cases of this kind.

 "Sadly,” noted Ashenburg “the best medical advice of the day probably doomed many people, for the dirtier people were, the more likely they were to harbor Pulex irritants, the flea now believed to have carried the plague bacillus from rats to humans."

As I point out in my new book on Jews and pandemics, bathing was also frowned upon by eastern European Jews in the 1900s.

According to a Jewish doctor from Wolozyn (now Valozhyn, Belarus), who collected folk curios in the course of his work in the field, it was common practice to avoid changing a patient’s sheets, underwear, and clothing; and washing them with clean water (even wiping their face), and even the use of a cold compresses, would be forbidden. There was no question of opening a window or giving the patient a bath . . . Similar precautions were taken in the room where a woman lay in confinement; moreover, her bed linen would not be changed for four weeks (until her next ritual immersion). The foul air in such rooms was thought to be evidence of the presence of the forces of evil and the struggle against sickness as a demonic being.

Eilizabeth I of England bathed once a month, as she said, “whether I need it or not.” But the seventeenth century raised the bar: it was spectacularly, even defiantly dirty. Elizabeth’s successor, James I, reportedly washed only his fingers, The body odor of Henri IV of France (1553-1610) was notorious, as was that of this son Louis XIII. He boasted, “I take after my father, I smell of armpits”.
— Ashenburg. The Dirt on Clean. p99.

Clean Linens and Rabbi Yossi

While washing the body was generally avoided in seventeenth century Europe, clean clothes were most certainly demanded, especially among the middle and upper classes.  "Clean linen" writes Ashenburg, "was not a substitute for washing the body with water - it was better than that, safer, more reliable and based on scientific principles." And here perhaps is an echo of the position of Rabbi Yossi in today's page of Talmud.  To be clear: Rabbi Yossi was not arguing that bathing was not important - rather he argued about the length of time a person could forgo a bath and not become "repulsive" to a spouse.  But his emphasis on the need for laundered and clean clothes is striking.  The Talmud (Nedarim 81a) relates Rabbi Yossi's concerns to a teaching of the physician ShmuelFilth on the head leads to blindness, dirty clothes leads to dementia, and not bathing leads to boils and sores..." According to Rabbenu Nissim, (a fourteenth century commentator known by his acronym as the Ran), the first and third of these conditions may be cured - but not the dementia caused by dirty clothes. That's why Rabbi Yossi claimed that the water needed to do the laundry was so important.  Here's the text of the Ran:

כשגופו מזוהם שאינו רוחץ תמיד מביאו לידי שיחנא וכיבי אבעבועות המכאיבות ולאלו יש רפואות אבל שעמום קשה מהן אלמא כביסה אלימא מרחיצה

Bathing and Healing

In a 2002 a review of the history of spa therapies was published in Annals of the Rheumatic Diseasesthe authors noted that several randomised controlled trials had studied the effects of spa therapy in rheumatoid arthritis and osteoarthritis but that "definite judgment about its efficacy is impossible because of methodological flaws in these studies." However, "...overall, the results showed positive effects lasting for three to nine months. Recently, a randomised controlled trial has shown that spa therapy is clearly effective in ankylosing spondylitis. Two intervention groups followed a three week course of spa therapy at two different spa resorts, and were compared with a control group who stayed at home and continued standard treatment consisting of anti-inflammatory drugs and weekly group physical therapy. Significant improvements in function, pain, global wellbeing, and morning stiffness were found for both intervention groups until nine months after spa therapy." 

Bathing - and clean clothes - are social customs that have changed and changed again over time. We  know of no evidence to support Rabbi Yossi's link between dementia and clean clothes, but at other times and on other cultures clean clothes were indeed valued far beyond a clean body.  And today, bathing and doing the laundry still seem like rather good ideas.

Throughout the ages the interest in the use of water in medicine has fluctuated from century to century and from nation to nation. The (medical) world has viewed it with different opinions, from very enthusiastic to extremely critical, and from beneficial to harmful. Today, spa therapy is receiving renewed attention from many medical specialties and health tourists, and having a revival. However, the exact therapeutic potential of spa therapy still remains largely unknown. Better and more profound scientific evidence for its efficacy is therefore warranted, in particular for its effects on the musculo-skeletal system.
— van Tubergen and van der Linden. A Brief History of Spa Therapy. Ann Rheum Dis 2002;61:275
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Nedarim 50b ~ Shmuel, Colonoscopies, and the Pillcam

Shmuel: Astronomer and Doctor Extraoirdinaire

Shmuel (c. 165- 257 CE) was a fascinating talmudic rabbi, who lived in Nehardea in Babylon. (Nehardea is located in what is today Anbar province in Iraq, and was under the control of ISIS until 2017. Heritage visits are therefore not recommended.)  Shmuel's areas of special interest were medicine and astronomy. He taught that all illnesses could be traced to "the air"  (הכל ברוח)  - or as we might put it today, the environment - and although he was a modest man, he was certain of his medical and astronomical skills.   He claimed to know the cure for  all but three medical conditions, (...כל מילי ידענא אסותייהו לבר מהני תלת) and he declared that he knew astronomy so well that the stars of the sky were as familiar to him as were the streets of Nehardea where he lived.

Although I am as familiar with the paths of the stars as with the streets of Nehardea, I can not explain the nature or the movements of the comets..
— TB Berachot 58b

Abdominal Pains? Swallow This...

In today's page of Talmud, Shmuel offers another of his medical teachings - a way to diagnose gastrointestinal disorders.  

 מאי ביצה טורמיטא? אמר שמואל עבדא דעביד לה שוי אלפא דינרי! ומעייל לה אלפא זימני במיא חמימי ואלפא זימני במיא קרירי עד דמתזוטרא כי היכי דבלעיתה. ואם אית כיבא סריך עלה וכד נפקא ואתיא ידע אסיא מאי סמא מתבעי ליה ובמאי מתסי

What is meant by a turmita egg? Shmuel said [that it is such an important diagnostic tool] that  a slave who knows how to prepare it properly is worth a thousand dinars.  He puts the egg into hot water a thousand times and into cold water a thousand times, until the egg has shrunk so that it may be swallowed whole.  If a person has a stomach illness, a residue forms over the egg, and when the patient excretes it, the egg can be examined and the doctor will know which medicine is needed and how to heal the patient....(Nedarim 50b)

All this may seem rather fanciful, but Shmuel was trying to solve a huge problem: when we want to understand how the gastrointestinal system is functioning, how do we look at, and get information from a place where the sun don't shine?  Shmuel devised a remote probe - in his case a hard-boiled egg - to send in and retrieve the necessary information. Two thousand years later, an Israeli medical device company has updated this idea, and in so doing has revolutionized the way we can investigate intestinal disorders.

The Israeli Pillcam - Shmuel's Idea in Action 

One way that your doctor can figure out what is wrong with your gastrointestinal system is to take a look. For a many years, that meant sedation and inserting a scope the width of your index finger down the mouth and into the stomach, or up the rectum and into the colon. But an Israel company has changed all that, using Shmuel's idea (sort of).  Given Imaging, based in Yokne'am, has developed a pill which contains a camera capable of sending high quality images from the depths of your guts straight to your doctor's computer. You just swallow the pill and let it send images from deep inside you.

Normal colon and findings visualized at colon capsule endoscopy. A: Normal colon; B: Diverticula; C, D: Polyps; E, F: Ulcerative colitis. From Spada et al. Colon capsule endoscopy: What we know and what we would like to know. World Journal of  Gastroenterology 2014: 7; 20(45): 16948-16955.

There are of course limits to the pillcam technology - for one thing if a lesion is seen in the images, it will need to be biopsied, and that needs an old fashioned endoscopy exam.  But it is a wonderful option for GI doctors and their patients. Perhaps even Shmuel would have been willing to give up his very shriveled hard-boiled egg for the opportunity to swallow a new, shiny, white Israeli pillcam.*

[*Update: In 2014, Given was acquired by a private company, who later sold it to Medtronics.]  

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Shabbat 50a ~ Cleanliness is next to Godliness

שבת נ, ב

דְּתַנְיָא: רוֹחֵץ אָדָם פָּנָיו יָדָיו וְרַגְלָיו בְּכׇל יוֹם בִּשְׁבִיל קוֹנוֹ, מִשּׁוּם שֶׁנֶּאֱמַר: ״כֹּל פָּעַל ה׳ לַמַּעֲנֵהוּ״

It was taught in a baraita: A person must wash his face, his hands, and his feet every day for the sake of his Maker, as it is stated: “The Lord has made everything for His own purpose” (Proverbs 16:4).

Cleanliness, it is said, is next to Godliness. Its is an odd phrase, suggesting that being clean is an attribute of divinity. Today’s passage in the Talmud suggests that cleanliness is a feature of a God-fearing person. Here is how Rashi, the eleventh-century exegete, explains it:

בשביל קונהו - לכבוד קונהו דכתיב (בראשית ט׳:ו׳) כי בצלם אלהים עשה וגו' ועוד דהרואה בריות נאות אומר ברוך שככה לו בעולמו

For the sake of his Maker: to honor his maker, as it is written (Gen. 9:6) “For he was made in the image of God.” In addition, when others see a clean person they will say “Blessed Be He who created this in His world.

As we will see, it wan’t just the face hands and feet that should be washed daily.

Early Christianity and its rejection of Hand washing

Washing and bathing rituals have been a part of Judaism since its inception, and it was over some of these rituals that the early Christians broke away from Judaism. Jesus spent much of his time among the ritually impure, which annoyed the rabbinate of the day. In the Gospel of Mark (7:1-23) we read that Jesus’ disciples ate bread with out having washed their hands. This was a remarkable rebellion, “For the Pharisees, and all the Jews do not eat unless they give their hands a ceremonial washing, holding to the tradition of the elders.” When criticized for this, Jesus belittled the practices and accused those who followed it of hypocracy: “Isaiah was right when he prophesied about you hypocrites; as it is written: “‘These people honor me with their lips, but their hearts are far from me. They worship me in vain; their teachings are merely human rules.’” From then on, Judaism and Christianity adopted very different attitudes towards personal hygiene and cleanliness.

Jesus’ indifference to ritual purity accorded with what later became a wider Christian distrust or neglect of the body.
— Katherine Ashenburg. The Dirt on Clean (North Point Press 2007) p 54.

Clean Body, Clean Clothes

Elsewhere, there Talmud outlines the importance of bathing in a discussion about vows:


נדרים דף עט, א - פא, א 

ואלו נדרים שהוא מפר, דברים שיש בהן ענוי נפש: אם ארחץ ואם לא ארחץ ...אלא דאמרה הנאת רחיצה עלי לעולם אם ארחץ היום, ורבי יוסי סבר: ניוול דחד יומא לא שמיה ניוול

מעיין של בני העיר, חייהן וחיי אחרים - חייהן קודמין לחיי אחרים, בהמתם ובהמת אחרים  בהמתם קודמת לבהמת אחרים, כביסתן וכביסת אחרים - כביסתן קודמת לכביסת אחרים, חיי אחרים וכביסתן - חיי אחרים קודמין לכביסתן, רבי יוסי אומר: כביסתן קודמת לחיי אחרים

כביסה אלימא לר' יוסי, דאמר שמואל: האי ערבוביתא דרישא מתיא לידי עוירא, ערבוביתא דמאני מתיא לידי שעמומיתא, ערבוביתא דגופא מתיא לידי שיחני וכיבי

 

These are the vows [made by a wife] that a husband may revoke: matters that involve self-afflction. For example [a wife made a vow] "If I bathe and if I do not bathe..."

What could this mean? She said The pleasure of bathing is forbidden to me forever if I bathe today. And Rabbi Yossi believes that not bathing for one day is not called repugnance...

If a spring belonged to townspeople, [but it does not supply the needs of everyone, whose needs take precedence?] When it is a question of their own lives or the lives of strangers, their own lives take precedence;  the lives of their cattle or the cattle of strangers - their cattle take precedence over those of strangers; their laundering or that of strangers - their laundering takes precedence over that of strangers. But if the choice lies between the lives of strangers and their own laundering, the lives of the strangers take precedence over their own laundering. R. Yossi ruled: Their laundering takes precedence over the lives of strangers...

[The discomfort of not laundering clothes is greater than that of not bathing] according to Rabbi Yossi, as Shmuel taught: filth on the head leads to blindness, dirty clothes leads to dementia, not bathing leads to boils and sores...

This passage seeks to understand a Mishnah which taught that a husband may annul his wife's vow if it would interfere with her bathing regime and hence cause her to become, well, smelly and unattractive.  In contrast to this, Rabbi Yossi (a student of Rabbi Akivah and who lived in Israel in the second century C.E.) taught that this vow cannot be annulled, since he understands that it only prevents her from bathing for a single day - and this brief abstinence does not cause her to become repugnant in her husband's eyes.  The analysis is completed when it is discovered that Rabbi Yossi, while not seeming to be bothered by a lack of one day of bathing, was indeed very bothered by a lack of clean laundry.  How bothered? Well, if it's your water and you only have enough to clean your own laundry or to give an outsider a life sustaining drink, guess who is going to be wearing some clean clothes! Rabbi Yossi was so bothered by dirty clothes that he valued them over life itself (so long as that life was not your own). It seems rather odd, does it not, for Rabbi Yossi to allow a wife to do without bathing for a day and yet hold clean clothing to be really important? To answer this, we need to dive in to the history of bathing.

Jewish, Roman and Early Christian Bathing Habits

The Talmud is replete with statements that emphasize the importance of daily bathing.  A scholar (תלמיד חכם) is forbidden to live in a town that does not have at least one bathhouse, and Hillel the Elder taught his students that going to wash in the bathhouse was a mitzvah, since there was a responsibility to care for the human body, created as it was in the very image of God. Hillel seems to have left a cleanliness legacy in his family: his grandson, Rabban Gamliel (who lived in the early part of the first century CE.) was so in need of bathing that he allowed himself to wash on the first night after his wife died - an act that was forbidden.

In the Jerusalem Talmud, the precedent of Rabban Gamliel is further analyzed. When a rabbi developed boils during his period of mourning (which the Talmud assumes was due to a lack of washing) a certain Rabbi Yassa allowed him to wash immediately - "for otherwise he could die." Rabbi Yassa extended his ruling to allow bathing on (wait for it...) Tisha Be'Av and Yom Kippur - so long as the bathing was to alleviate discomfort rather than for pleasure. The famous Greek physician Hippocrates, (died c. 370 BC) wrote about the healing power of warm (and very cold) baths.  But as Katherine Ashenburg wrote in The Dirt on Clean, her definitive (and very readable) history of bathing, "...while the Greeks appreciated water...the Romans adored it."  The Roman desire of cleanliness and their culture of bathing is of course well known to anyone who has visited a Roman ruin in Israel, Italy or elsewhere.

The focus on bathing seems to have changed with the fall of the Roman empire and the rise of Christianity. Ashenburg explains that since the first Christians were Jews, a way of distinguishing themselves - as we have noted - was to ignore the Jewish laws of ritual purity, which involved so much hand washing and body dipping.  Although ritual purity is not the same as cleanliness, the two became linked, and with the opposition to the Jewish rules of ritual cleanliness, there rose a Christian opposition to bathing.  In the middle ages, some monastic orders allowed only three baths a year, "but monks whose holiness trumped cleanliness could decline any or all baths." What few bathhouses there were in medieval Europe were closed during the years of the Great Plague, since the best science of the day taught that heat and water created openings on the skin, through which the plague would enter.  "Sadly, the best medical advice of the day probably doomed many people, for the dirtier people were, the more likely they were to harbor Pulex irritants, the flea now believed to have carried the plague bacillus from rats to humans."

Eilizabeth I of England bathed once a month, as she said, “whether I need it or not.” But the seventeenth century raised the bar: it was spectacularly, even defiantly dirty. Elizabeth’s successor, James I, reportedly washed only his fingers, The body odor of Henri IV of France (1553-1610) was notorious, as was that of this son Louis XIII. He boasted, “I take after my father, I smell of armpits”.
— Ashenburg. The Dirt on Clean. p99.

Clean Linens and Rabbi Yossi

While washing the body was generally avoided in seventeenth century Europe, clean clothes were most certainly demanded, especially among the middle and upper classes.  "Clean linen" writes Ashenburg, "was not a substitute for washing the body with water - it was better than that, safer, more reliable and based on scientific principles." And here perhaps is an echo of the position of Rabbi Yossi in Nedarim.  To be clear: Rabbi Yossi was not arguing that bathing was not important - rather he argued about the length of time a person could forgo a bath and not become "repulsive" to a spouse.  But his emphasis on the need for laundered and clean clothes is striking.  As we noted, the Talmud (Nedarim 81a) relates Rabbi Yossi's concerns to a teaching of the physician ShmuelFilth on the head leads to blindness, dirty clothes leads to dementia, and not bathing leads to boils and sores..." According to Rabbenu Nissim, (a fourteenth century commentator known by his acronym as the Ran, but pronounced Run), the first and third of these conditions may be cured - but not the dementia caused by dirty clothes. That's why Rabbi Yossi claimed that the water needed to do the laundry was so important.  Here's the text of the Ran:

כשגופו מזוהם שאינו רוחץ תמיד מביאו לידי שיחנא וכיבי אבעבועות המכאיבות ולאלו יש רפואות אבל שעמום קשה מהן אלמא כביסה אלימא מרחיצה

Bathing and Healing

In a 2002 a review of the history of spa therapies was published in Annals of the Rheumatic Diseasesthe authors noted that several randomised controlled trials had studied the effects of spa therapy in rheumatoid arthritis and osteoarthritis but that "definite judgment about its efficacy is impossible because of methodological flaws in these studies." However, "...overall, the results showed positive effects lasting for three to nine months. Recently, a randomised controlled trial has shown that spa therapy is clearly effective in ankylosing spondylitis. Two intervention groups followed a three week course of spa therapy at two different spa resorts, and were compared with a control group who stayed at home and continued standard treatment consisting of anti-inflammatory drugs and weekly group physical therapy. Significant improvements in function, pain, global wellbeing, and morning stiffness were found for both intervention groups until nine months after spa therapy." 

Bathing - and clean clothes - are social customs that have changed and changed again over time. We  know of no evidence to support Rabbi Yossi's link between dementia and clean clothes, but at other times and in other cultures clean clothes were indeed valued far beyond a clean body.  And today, in the midst of the COVID pandemic, bathing, laundry and above all hand-washing still seem like rather good ideas.

Avraham HaCohen. Millel LeAvraham. Bnei Brak 1980. 145.

Avraham HaCohen. Millel LeAvraham. Bnei Brak 1980. 145.

Furthermore, during the enormous [influenza] pandemic after the First World War which killed many from across all nations, very few Jews died…There are a number of practices over the generations that prove that our Torah is a Torah of Life. Even now, during the cholera, may we be spared, the Ministry of Health has declared that everyone must wash their hands prior to eating, and must wash all fruit and edibles very well. Blessed be He who has chosen us and given us the Torah of Truth. Thus is what is meant when they said how great is the Torah which instills life into those who follow it both in this world and how much more in the world to come, the Eternal World!

[A partial repost from here.]

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Berachot 59b ~ Birkat HaChammah: The Blessing That Isn't There

ברכות נט, ב

תָּנוּ רַבָּנַן: הָרוֹאֶה חַמָּה בִּתְקוּפָתָהּ, לְבָנָה בִּגְבוּרָתָהּ, וְכוֹכָבִים בִּמְסִילּוֹתָם, וּמַזָּלוֹת כְּסִדְרָן, אוֹמֵר: ״בָּרוּךְ … עוֹשֵׂה בְרֵאשִׁית״. וְאֵימַת הָוֵי? אָמַר אַבָּיֵי: כׇּל עֶשְׂרִין וּתְמָנְיָא שְׁנִין, וְהָדַר מַחְזוֹר וְנָפְלָה תְּקוּפַת נִיסָן, בְּשַׁבְּתַאי בְּאוּרְתָּא דִּתְלָת נַגְהֵי אַרְבַּע

The Sages taught: One who sees the sun in the beginning of its cycle, the moon in its might, the planets in their orbit, or the signs of the zodiac aligned in their order recites: Blessed…Author of creation. The Gemara asks: And when is it that the sun is at the beginning of its cycle? Abaye said: Every twenty-eight years when the cycle is complete and returns to its genesis, and the Nisan, vernal, equinox, when the spring days and nights are of equal length, falls within the constellation of Saturn on the night of the third and eve of the fourth day of the week, as then their arrangement returns to be as it was when the constellations were first placed in the heavens.

This passage is the source for the rarest blessing in Judaism, known as Birkat HaChammah, the Blessing over the Sun. It can only be said on a Wednesday morning once every 28 years. The last opportunity you had was on Wednesday April 8 2009. Do you remember where you were then? (I was on a flight and I wasn’t the only passenger on the plane who looked out of the window and recited the blessing.) The ceremony was reported in The New York Times and commemorated with a special exhibition at the Jewish National and University Library in Jerusalem. But why can this event only be said on a Wednesday every 28 years? Abaye didn’t explain that. But we will.

The calculation of Birkat Hachammah

Abaye’s explanation of when this rare blessing occurs is based on a calculation cited by Shmuel. He claimed that the length of the solar year is exactly 365 days and six hours. And the word exactly is very critical, so remember it. Because the solar year had this regular length, the timing of the seasons would vary predictably, as described in a passage in Eruvin (56a.)


ערובין נו, א

אמר שמואל אין תקופת ניסן נופלת אלא בארבעה רבעי היום או בתחלת היום או בתחלת הלילה או בחצי היום או בחצי הלילה 

ואין תקופת תמוז נופלת אלא או באחת ומחצה או בשבע ומחצה בין ביום ובין בלילה ואין תקופת תשרי נופלת אלא או בשלש שעות או בתשע שעות בין ביום ובין בלילה ואין תקופת טבת נופלת אלא או בארבע ומחצה או בעשר ומחצה בין ביום ובין בלילה 

ואין בין תקופה לתקופה אלא תשעים ואחד יום ושבע שעות ומחצה ואין תקופה מושכת מחברתה אלא חצי שעה 

Shmuel stated: Spring can only occur at the start of one of the four quarters of the day: either at the beginning of the day or the beginning of the night, or in the middle of the day or in the middle of the night. 

The summer season can only begin at one and a half or seven and a half hours, which may be in the daytime or at night. Autumn can only begin at the third or ninth hour of the day or at night, and winter can only begin at the fourth and a half hour or the tenth and a half hour, which may be during the day or at night.

And the exact length of every season is ninety-one days seven and a half hours.

Let us untangle all this. The Bible clearly describes the Sun as having been created on the fourth of the seven days of creation (Gen. 1:16–19). In Jewish law, the day legally begins not at midnight, as it does in our Western calendar, but at sundown. So the fourth day, counting from Sunday, begins at sundown on Tuesday evening. According to the rabbis of the Talmud, the Sun was created at the very start of the fourth day of creation, at a time we would recognize today as 6 p.m. on Tuesday evening (assuming that the length of daylight is exactly 12 hours). This time is also assumed by these rabbis to be the vernal equinox, the time we call the start of spring.

To understand Shmuel’s explanation about the times for the start of the seasons, take a look at the table below. Remember that Shmuel’s solar year is exactly 365 days and 6 hours long. Since each of the four seasons occupies exactly one quarter of a year, each season is 91 days and 7.5 hours. Because the Sun was created at 6 p.m. on Tuesday evening (the start of the fourth day, which was spring in that first year of creation), the next season, summer, would begin exactly 91 complete days and 7.5 hours later. Since 91 complete days brings us back to 6 p.m. (but not a Tuesday), the start of summer may be calculated by adding 7.5 hours to the time of the start of spring, which is 1:30 a.m., or 7.5 hours into the night. The first fall season began 7.5 hours later than the first summer, or at 9 a.m., and the first winter began at 4: 30 p.m., or 10.5 hours into the day, assuming that daytime began at 6 a.m. This is outlined in the table and is in keeping with Shmuel’s statements about the start of the seasons.

Year Spring Summer Fall Winter
1 0 hours into the night
(6 p.m.)
71⁄2 hours into the
night
(1:30 a.m.)
3 hours into the day
(9 a.m.)
101⁄2 hours
into the day
(4:30 p.m.)
2 6 hours into the night
(midnight)
11⁄2 hours into
the day
(7:30 a.m.)
9 hours into the day
(3 p.m.)
41⁄2 hours into
the night
(10:30 p.m.)
3 0 hours into the day
(6 a.m.)
71⁄2 hours into
the day
(1:30 p.m.)
3 hours into the
night
(9 p.m.)
101⁄2 hours
into the night
(4:30 a.m.)
4 6 hours into the day
(midday)
11⁄2 hours into the
night
(7:30 p.m.)
9 hours into the
night
(3 a.m.)
41⁄2 hours into
the day
(10:30 a.m.)
5 Cycle repeats as for Year 1

According to Shmuel, the start of every fourth spring always occurs at 6 p.m. but does not fall on the same night of the week. It is not difficult to calculate on which night spring will begin every four years if the spring of year one began on a Tuesday. Four whole years later contain sixteen seasons, which each last 91 days and 7.5 hours. Thus, sixteen seasons contain (16 × 91 days + 16 × 7.5 hours) or 1,456 days and 120 hours. Now 120 hours are exactly 5 days, so four years contain 1,461 days, or 208 weeks and 5 days. Because every complete week added to the Tuesday evening start brings us back again to Tuesday evening, we need only add 5 days to the day of the week on which the season began to determine the day of the week on which it will begin four years later. If in the first year, spring began on a Tuesday night, in the fifth year, it will begin on a Sunday night; in the ninth year, it will begin on a Friday night, and so on. In fact, spring will not start at 6 p.m. on a Tuesday until a full twenty-eight years have passed, as we can see from the table below.

Year 1 5 9 13 17 21 25 29
Evening on which Spring begins: Tuesday Sunday Friday Wednesday Monday Saturday Thursday Tuesday

And so, according to Shmuel’s calendar, in the first year of every twenty-eight-year cycle, at precisely 6 P.M. on a Tuesday, the Sun returns to the exact position on the very same day of the week in which God had placed it at the very start of creation. This is why Abaye—who accepted Shmuel’s solar scheme—codified the blessing of the Sun to be recited at this interval, and the cycle came to be known as the Mahzor Hagadol—the great cycle. Even though the Sun returns to the same position every four years, this return only coincides with a Tuesday evening once every twenty-eight years. Although the Talmud seems to suggest that the blessing be recited on Tuesday evening, when Maimonides codified this ritual, he wrote that it should be performed “on the morning of the fourth day of the week,” which is what happens to this day.

But it’s a Fiction

However, the system of Shmuel that was adopted by Abaye is purely a religious construct, and although it claims to have an astronomical equivalent, there is no solar phenomenon that happens once every twenty-eight years. Let me repeat it so you are completely clear: there is no solar phenomenon that happens once every twenty-eight years.

Shmuel’s length of the solar year (which is of course not the time for the Sun to orbit the Earth, but rather for the Earth to complete one revolution around the Sun) is actually longer than the correct period of orbit, which is 365 days, 5 hours, 48 minutes, and 45 seconds. The length of the solar year as calculated by Shmuel is too long by over eleven minutes. And there is one more problem. Shmuel claimed that the seasons each last  91 days and 7.5 hours. But the seasons are not of equal length. This inequality occurs because the speed of the Earth is not constant. As a result, the length of the seasons varies and in the northern hemisphere, winter lasts about eighty-nine days and summer about ninety-three days. Furthermore, the length of daylight varies from place to place and changes over the course of the year. This means that daytime is not always exactly twelve hours, as it was assumed by Shmuel to be for the purposes of his calculations. To further complicate matters, Jewish law adopted another measure of the length of a solar year that is closer to (but still slightly longer than) the true length of the solar year. It is not surprising that one scholar of Judaism referred to the blessing of the Sun as “perhaps the most unusual periodic Jewish ritual currently practiced.” It is not only the rarest blessing; it is the only one we make over an event that is not actually happening.

Birkat Hachammah in Early Modern Jewish History

Despite its rarity and the fact that there is no true solar event occurring at the time of the ritual, the blessing of the Sun has become a much loved event and seems to have become increasingly important to Jews over the last few hundred years. One of the earliest descriptions of the ritual is provided by a student of Rabbi Jacob Moellin (known by the acronym Maharil). Here is the student’s description of preparations for the blessing of the Sun in the spring of 1421:

At that time Maharil told the town beadles to announce in the synagogue on the previous evening (i.e., Tuesday evening) that the next day—Wednesday—everyone should be careful to say the blessing at sunrise “Blessed are you Lord our God, king of the universe, who makes works of creation”...for at the start of every [twenty-eight year] cycle, the Sun returns to the exact spot in which it was placed at the creation of the world. . . .

Isaac Schorr, the rabbi of the town of Gewitsch now in the Czech Republic, described what happened when the weather refused to cooperate for the ritual blessing to be recited in 1757:

The people of the community were eager to serve and to bless by invoking God’s name; they were happy and rejoiced to do the will of their maker, for they cherished a mitzvah at its proper time… Their hopes were disappointed, however, and were turned into despair, for on that day, and the time of the onset of the equinox, the sky was overcast with clouds, and the sun could not be seen at all.

More recently, a solution to the vagaries of the weather was suggested by some rather enthusiastic followers of Rabbi Yoel Teitelbaum, leader of the Satmar Hasidim. They questioned whether a light plane could be hired to carry them above the clouds should the day be overcast, allowing then to perform the ritual blessing above the clouds. Although Rabbi Teitelbaum ruled that this flight was not required, the ritual is clearly one that has become an important, if rare, part of Jewish practice.

The Rabbi who was arrested at Birkat Hachammah

In April 1897 The New York Times reported on the arrest of one rabbi (and the flight of another) as they led a large group that had gathered to recite Birkat Hachammah. The whole things was a bit of a misunderstanding, or as The Times put it, “ The attempt of a foreign citizen [the Rabbi] to explain to an American Irishman [the police officer] an astronomical situation and a tradition of the Talmud was a dismal failure.” Here is the original. Read it through; it is absolutely delightful.

The New York Times, April 8, 1897.

The New York Times, April 8, 1897.

The Widespread Celebration of Birkat Hachammah

It was not only the Orthodox Jewish Community that celebrated the last Birkat Hachammah. Conservative, Reform, and Reconstructionist Jews also widely participated. For example Temple Beth Israel, a reform synagogue in York, Pennsylvania, encouraged children to attend this “once in a generation, multi-generational event” by joining a service at dawn on the lawn of the temple, followed by a “Dutch-treat breakfast” at a local diner. Other synagogues called on their members to use the event as a way to increase environmental awareness. One suggestion from the Reconstructionist movement was to undertake to “reduce my household’s carbon emissions by 10% by next Passover.” And the comedian Stephen Colbert lampooned the event on his popular cable television show, when he “freed his Jews.”

The next opportunity to say this blessing over the sun will be on Wednesday, 8 April 2037, (23 Nisan 5797). Let us all hope to be there.

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