How Old Was Rivka When She Married Yitzchok?
A Study of the Competing Midrashic and Rabbinic Chronologies
Introduction
Rivka’s age at the time of her marriage to Yitzchok has generated considerable discussion in our shiur at Chabad of East Lakeview. I decided to look more closely at the original sources and the calculations behind the different opinions.
If you were to ask people how old Rivka was when she married, almost everyone would say three because this is Rashi. The question on Rashi is obvious, how does a 3 year old lift buckets of water and Yaakov is marrying a three year old? Rashi knew this question and seemingly ignored it still felt her correct age was 3. I will answer it in the next few paragraphs.
However, there is another opinion that she was 14, equally legitimate as Rashi. As Rabbi Breitowitz said in his Shiur this year, if you do not like 3, you can accept the opinion that 14 was her age.
The sources do not present one universally agreed chronology. The central disagreement is between a tradition that places Rivka’s birth at the time of the Akeidah, when Yitzchok was thirty-seven, making her three years old and another tradition that calculates her age at marriage as fourteen.
The purpose of this article is to distinguish what each source actually says, how the calculations work, and where the commentators acknowledge disagreements among Midrashic traditions.
The Three Ages That Are Mentioned
1. Three years — Rashi and the chronology associated with Seder Olam.
Rashi says that Rivka was born at the time of the Akeidah, when Yitzchok was thirty-seven, and that Yitzchok married her three years later when he was forty. The resulting age is three.
2. Fourteen years — Rav Shmuel HaChassid from Speyer, as quoted by Tosfos.
Tosfos cites a calculation based on the Sifrei’s statement that Rivka and Kehat lived the same number of years – 133. This Seifrei only works if Rivka at fourteen when she married Yitzchok.
3. Ten years
The Sefer Hayashar does say Rivka’s age was ten years old. At the end of Parshas Chaya Sarah, the Sefer Hayashar says – ויתנו לו את רבקה בת בתואל ליצחק לאישה. והנערה טובת מראה מאוד בתולה ואיש לא ידעה, בת עשר שנים היתה רבקה בימים ההם. No one else mentions ten years old. I assume that the Sefer Hayesher really is 14 and the Daled got erased.
According to Rashi what About the Question of a Three-Year-Old Rivka?
The three-year opinion naturally raises difficult questions when read alongside the narrative in Genesis 24. If she was three, how are we to understand Rivka’s actions at the well, her drawing water for Eliezer and his camels, and the description of her conduct? How should we understand that he married a three year old?
Rashi obviously took this into consideration and yet he agreed that Rivka was three.
One response is to accept the chronology of the Midrash as it stands, while recognizing that it creates questions for a modern reader. Another is to examine how aggadic descriptions, ancient assumptions about development, and chronological traditions are meant to be understood. Meaning, that at the time of the bible stories the human condition was different. Rashi assumed that children by the age of three were more developed and were physically older. The could draw water and get married.
The same age appropriate question can also be raised involving Bas Sheva in Sanhedrin, The Gemora in Sanhedrin say that Bas Sheva was 8 when she gave birth to Shlomo Hamelech. This was her second pregnancy with King David. Meaning at the age of 6 or 7 she was already married and when he saw her showering, he desired her. A normal man is not attracted to a seven year old girl. She got pregnant at this very young age.
There is an idea that people in the times of the Gemara had great physical abilities. There is a Gemora in Bechoros that says that a shepherd can see for ten miles. This is an extraordinary physical ability that we no longer have.
Support for the maturation of young children can be found later when Yaakov is punished for hiding Dinah from Eisav, his brother. Dinah was 8 and Eisav was one hundred. Who would want their evil 100 year old brother to marry his 8 year old daughter, Yet Yakov was punished because, yes this 8 year old child could have persuaded Eisav to change his life around and do good.
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Looking Under the Hood:
1. Rashi: Rivka Was Three Years Old
Why the Three-Year Opinion Is So Well Known
The three-year calculation is straightforward once one accepts the chronology used by Rashi:
- Sarah was 90 when Yitzchok was born (Genesis 17:17; 21:5, in the traditional calculation).
- Sarah died at 127 (Genesis 23:1).
- Yitzchok was therefore 37 when Sarah died: 127 − 90 = 37.
- Rashi places Sarah’s death at the time of the Akeidah and says that Rivka was born at that time.
- Yitzchok was 40 when he married Rivka (Genesis 25:20).
The calculation is therefore 40 − 37 = 3. This is the chronology Rashi presents in his commentary to Genesis 25:20.
The important qualification is that the Torah does not explicitly state that Rivka was born at the Akeidah. That connection is supplied by the rabbinic chronological tradition. The Torah states Yitzchok’s age at marriage, but Rivka’s age must be derived from other sources.
Those that say she was 14 can say, not that Rivka was born then, but that was when he was informed of Rivka’s birth that occurred 11 years earlier. No one says this idea.
Rashi’s comment on Genesis 25:20 explains why the verse tells us that Yitzchok was forty when he married Rivka. He writes:
בן ארבעים שנה … ובו בפרק נולדה רבקה; המתין לה עד שתהא ראויה לביאה ג׳ שנים ונשאה.
Translation: “Forty years old … At that time Rivka was born. He waited for her until she was fit for
To say it simpler. Yitzchok was thirty-seven at the Akeidah; Rivka was born at that time; and Yitzchok married her when he was forty. Rashi therefore gives her age as three.
Rashi’s explanation is associated with Seder Olam. The question that will become important below is whether the text of Seder Olam available to different commentators contained the same chronological reading.
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2. Seder Olam: The Textual Variation
The relevant passage in Seder Olam Rabbah, chapter 1, reads in the commonly printed text:
ואברהם בן מאת שנה בהולד לו את יצחק בנו (שם כא ה), אבינו יצחק היה כשנעקד על המזבח בן ל”ז שנה, ויגר אברהם בארץ פלשתים ימים רבים (שם כא לד), הימים הללו מרובים על של חברון שהיו עשרים וחמש שנה, והללו עשרים ושש שנה, בו בפרק נולדה רבקה, נמצא אבינו יצחק נשא את רבקה בת (י”ד) [ג’] שנה,
Translation: “Our father Yitzchok was thirty-seven years old when he was bound on the altar. Avrohom dwelled in the land of the Philistines for many years. These years exceeded his dwelling for 25 years in Chevron, (from 75 years old to 99 years old.) And therefore the years in Plishtim were 26 (from 100 years old to 126 years old.) At that time Rivkah was born, therefore Yitzchok married Rivka at three years old.
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3. The Gra: A Different Reading of the Seder Olam and the Chronology
The Gra’s comment on the Seder Olam:
בן כ”ו שנה, כצ”ל, ולא כתוספות ביבמות שמביא בשם סדר עולם שהיה בן ל”ז שנה כשנעקד, אי אפשר לומר כן דהא אמר שהיה דר בארץ פלשתים כ”ו שנים, ואי אפשר לומר שהיה אח”כ שהרי רבקה היתה בת י”ד כשנשאה, ובשעת עקדה נולדה, וא”צ להגיה כאן, אלא שנוסחא מוטעת נזדמנה לפניהם כמו שכתוב לפנינו אלא שצ”ל כ”ו שנים:
The Gra says בן כ״ו שנה, כצ״ל – that no, that Yitzchok was 26 at the Akeda, and Rikva was 14 at her marriage.
In fact the printed text preserves a significant variant: fourteen appears in parentheses and three in brackets. The two numbers reflect different chronological readings. The reading of three fits the preceding statement that Rivka was born when Yitzchok was thirty-seven and that he married her at forty. As a rule we do not read Genorah and Medresh when words are in parentesis, so we give no credence to 14.
Amazingly, according to the Gra, Sarah did not die right after the Akeda, but 11 years later.
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4. Textual Problem with the Seder Olam
According to our text of the Seder Olam, there is a problem with Rashi’s and Tosfes’s text with the Seder Olam of 37 and 3.
Seder Olam’s chronology includes a discussion of Abraham’s years in the land of the Philistines, based on Genesis 21:34:
ויגר אברהם בארץ פלשתים ימים רבים and then the Seder Olam says בו בפרק נולדה רבקה (that at that time Rivka was born.) Seemingly the Seder Olam seems to be saying that the Akeda was at that time, right after Avrohom left the land of the Philistine and that Rivka was born at the Akeda, at the time Avrohom left the land of the Philistines.
Rashi sidesteps this issue om Verse 21:34 and says the Akedah was 11 years later. The Seder Olam does not add these words. You must say that Rashi’s version of the Seder Olam had this wording or that Rashi feels that this is what the Seder Olam meant that the Akeda was 11 years later.
5. Tosfos: The Fourteen-Year Calculation
Tosfos discusses the description of Rivka in Genesis 24:16 as a נערה (na’arah), in the context of the Gemara’s statement in Yevamos 61b that “a virgin” in the relevant halachic discussion refers to a na’arah. Tosfos asks how this description fits the tradition in Seder Olam that Rivka was only three when Yitzchok married her.
Tosfos first explains that Seder Olam explicitly says three. It then quotes Rav Shmuel HaChassid of Speyer, who derives the age of fourteen from the Sifrei.
The Sifrei, in Parshas V’zos HaBerachah, lists six pairs of people who lived the same number of years. One pair is Rivka and Kehat. Kehat lived 133 years (Exodus 6:18), so this tradition assigns Rivka a lifespan of 133 years as well.
Rav Shmuel’s calculation proceeds as follows:
- Yitzchok was forty when he married Rivka (Genesis 25:20).
- Yitzchok was sixty when Yaakov and Eisav were born (Genesis 25:26). Thus, twenty years passed between the marriage and the birth of the twins.
- According to the chronology Tosfos uses, Yaakov was ninety-nine when Rivka died. Yaakov was sixty-three when he received the blessing; he then spent fourteen years studying in the house of Ever, twenty years in the house of Lavan, and two years on the journey back.
- If Rivka lived 133 years and Yaakov was ninety-nine when she died, Rivka was thirty-four when Yaakov was born: 133 − 99 = 34.
- Yaakov was born twenty years after Yitzchok and Rivka married. Rivka was therefore fourteen when she married: 34 − 20 = 14.
The arithmetic is: 133 − 99 = 34; 34 − 20 = 14.
Tosfos concludes:
וצריך לומר דמדרשות חלוקים זה על זה
Translation: “We must therefore say that the Midrashim disagree with one another.”
This is the key conclusion. Tosfos does not force the two chronologies into agreement. He acknowledges that the tradition in Seder Olam and the tradition reflected in the Sifrei lead to different results.
The words of Tosfes
וכן הוא אומר והנערה טובת מראה מאד – תימה דהכא משמע דרבקה נערה היתה ובסדר עולם (פ”א) תניא בהדיא שהיתה בת שלש כשנשאה יצחק ואי אפשר להגיה דהא תניא התם יצחק אבינו כשנעקד על גבי המזבח היה בן שבעה ושלשים שנה ובו בפרק נולדה רבקה וכתיב ויהי יצחק בן ארבעים שנה וגו’ נמצאת שהיתה בת ג’ וה”ר שמואל חסיד משפיר”א הוכיח שהיתה בת י”ד מדתניא בספרי ו’ זוגות שנותיהן שוות וקחשיב קהת ורבקה וקהת חיה קל”ג כדכתיב בקרא ואם היתה בת י”ד כשנשאה אז החשבון מכוון דכשנולד יעקב היתה בת ל”ד ויעקב היה בן צ”ט כשמתה רבקה הרי קל”ג שהרי כשנתברך היה בן ס”ג שאז מת ישמעאל וכל שנותיו של ישמעאל קל”ז כדכתיב וישמעאל (גדול מיצחק י”ד שנה ויצחק בן ס’ שנה בלדת אותם א”כ ישמעאל) בן ע”ד ונשאר מלידת יעקב עד סוף שני ישמעאל ס”ג וי”ד נטמן בבית עבר כדאמרינן במגילה (דף יז.) ועשרים שנה בבית לבן ושתי שנים בדרך ואז מתה רבקה כדדרשינן (מדרש רבה קהלת פ”ב) אלון בכות שתי בכיות של רבקה ומניקתה הרי צ”ט וצריך לומר דמדרשות חלוקים זה על זה:
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6. Ramban: The Two Traditions and the Meaning of Na’arah
These are two distinct parts of the Ramban’s discussion. First, he says that the chronological traditions disagree. Second, he explains how Rivka could be fourteen and still be described as a na’arah. The second point should not obscure the first.
The Ramban discusses the same difficulty. He first considers the possibility that the word נערה in Genesis 24:16 is being used descriptively rather than as a precise halachic classification. He rejects that forced explanation and concludes that the sources represent different traditions.
The Ramban writes:
ואין פירוש זה כלום אלא חלוקה היא תנא דסדר עולם סבר בת ג׳ היתה ותנא בסוף ספרי סבר י״ד והאי תנא דשמעתין כוותיה.
Translation: “This explanation is not valid. Rather, there is a disagreement: the tanna of Seder Olam holds that she was three, while the tanna at the end of the Sifrei holds that she was fourteen, and the tanna of our Talmudic passage follows that latter view.”
The Ramban then addresses a separate question: if Rivka was fourteen, why was she still called a na’arah rather than an adult, referred to as a bogeres? A na’arah is at twe;ve years old. He answers that she may have delayed, developing the two physical signs that mark the stage of na’arus until the age of fourteen:
אלא שהתה מלהביא שתי שערות שהן סימני נערות עד י״ד.
Translation: “Rather, she delayed developing the two hairs that are the signs of na’arus until the age of fourteen.”
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7. What Do Ketanah, Na’arah, and Bogeres Mean?
The discussion depends in part on the halachic stages used in the rabbinic sources. In simplified terms:
- Ketanah (קטנה): A girl who has not yet entered the halachic stage of na’arus.
- Na’arah (נערה): The intermediate stage starting at the age of twelve and the relevant physical signs of maturity.
- Bogeres (בוגרת): The subsequent stage, ordinarily reached after the period of na’arus. Normally at 12.5 years,.
These terms are legal classifications, not simply interchangeable labels for chronological ages. The Ramban and Rashba invoke the possibility that Rivka had not yet developed the two physical signs even at fourteen. That is how they explain the use of na’arah in the fourteen-year chronology.
Text of the Ramban:
אין בתולה אלא נערה וכן הוא אומר והנערה טובת מראה מאוד בתולה. פירוש ואין משיבין על דברי אגדה דלית לן מאי דאמרינן באגדה ובסדר עולם שרבקה בת ג’ שנים היתה באותה שעה וכן הא דאמרינן לקמן (יבמות דף ס”ד) א”ל רבא לרב נחמן וניליף מיצחק וכו’ לית ליה נמי בת נ’ שנים היתה שאם כן עשר שנים המתין עד שתהיה בת שלש עשרה שראוי’ לילד ושהה עמה עשר שנים אחר מכן.
ועוד תניא בספרי בפ’ וזאת הברכה, ששה זוגות שנותיהן שוות רבקה וקהת וכו’ וקהת חי קל”ג שנה צא וחשוב שנותיה של רבקה כשנשאה יצחק בן מ’ וכשנולד יעקב הי’ בן ס’ ויעקב כשמתה אמו בן צ”ט שהרי יעקב כשנתברך בן ס”ג כדמפורש בפ”ק דמגילה (דף י”ז) ומיד ברח והתם במגילה מוכח שנטמן בבית עבר י”ד שנה וכ’ שנה שעמד בבית לבן וב’ שנים בדרך הרי צ”ט ובאותו הפרק מתה רבקה כדדרשינן אלון בכות שתי בכיות רבקה ומניקתה ואם כשנשאה יצחק אבינו בת ג’ שנים היתה כשנולד יעקב בת כ”ג וצ”ט שנים ה רי כל שנותיה קכ”ב לפיכך הם משנין גרסת האגדה וגורסין בה י”ד שנה היתה כשנשאת.
ואינו נכון להגיה הספרים ועוד דהתם בסדר עולם תניא יצחק אבינו כשנעקד על גבי המזבח היה בן ל”ז שנה באותו הפרק נולדה רבקה וכתיב ויהי יצחק בן ארבעים שנה בקחתו את רבקה הרי לך דבת ג’ שנים היתה
ויש שדוחקים שמועה זו לומר שאע”פ שקטנה היתה כיון שהכתוב כשבא לספר בשבחה לקרות אותה בתולה קורא אותה נערה ש”מ שאין בתולה אלא נערה וכן הא דאמרינן לקמן ולילף מיצחק בדין הוא דלימא לי’ קטנה היתה אלא דעדיפא מינה א”ל שיצחק עקור היה ולא ללמד בא ואקשי’ עליה אי הכי אברהם נמי עקור היה אלא אע”פ שהיה עקור כיון שהכתוב מיותר לתלמודו הוא בא ה”נ אע”פ שהיתה [קטנה] מקשה דלימא לתלמודו הוא בא שאלו ללמד על עשר שנים כבר למדנו מאברהם.
ואין פירוש זה כלום אלא חלוקה היא תנא דסדר עולם סבר בת ג’ היתה ותנא בסוף ספרי סבר י”ד והאי תנא דשמעתין כוותיה ואי קשיא א”כ בוגרת היא י”ל מדכתיב והנערה ש”מ לא בגרה עדיין אלא שהתה מלהביא שתי שערות שהן סימני נערות עד י”ד א”נ לית להו אלון בכות שתי בכיות באותו הפרק.
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8. Rashba: A Related Discussion—and a Textual Problem
The Rashba also discusses the conflict between the age of three in Seder Olam and the age of fourteen derived from the Sifrei. He presents the same basic calculation: Yitzchok was forty when he married Rivka, sixty when Yaakov was born, and Yaakov was ninety-nine when Rivka died. If Rivka lived 133 years, she was thirty-four when Yaakov was born and fourteen when she married Yitzchok.
There is, however, a textual problem in the quotation included in my draft. It reads וד׳ שנה שעמד בבית לבן — “and four years that he spent in the house of Lavan.” The corresponding passages in Tosfos and Ramban read twenty years (ועשרים שנה / וכ׳ שנה), which is also the familiar chronology of Yaakov’s service for Lavan in Genesis 31:41.
This discrepancy must be checked against the specific printed edition or manuscript used for the Rashba. It may be a printing, transcription, or textual variant, but it should not be silently changed. Until the edition is identified, quote the Rashba with a note that the text in the consulted copy reads “four years,” while the parallel calculations read “twenty years.”
The Rashba also explains that Rivka could still be called a na’arah at fourteen if she had not yet developed the two physical signs of maturity. His discussion is therefore closely related to the Ramban’s.
Text of the Rashba:
אין בתולה אלא נערה וכן הוא אומר והנערה טובת מראה מאד בתולה. והאי תנא פליג אתנא דסדר עולם (פר”א) דהתם תני דרבקה בת שלש שנים ויום אחד היתה באותה שעה. ובספרי נמי תניא דלא כתנא דסדר עולם דתניא התם בפרשת וזאת הברכה (פי’ שנז) ששה זוגות הן שנותיהן שוות וכו’ רבקה וקהת, וקהת חי קל”ג שנה. ולפי חשבון זה על כרחנו רבקה בשעה שנשאת ליצחק בת י”ד שנה היתה, שהרי יצחק בן ארבעים שנה, וכשנולד יעקב היה בן ששים, ויעקב כשמתה אמו היה בן צ”ט שנה ותדע לך שהרי כשנתברך היה בן ס”ג שנה כדמפורש בשלהי פרק קמא דמגילה (יז, א) ומשנותיו של ישמעאל אתה למד כדאיתא התם, וי”ד שנה שנטמן בבית עבר כדמוכח התם במגילה, וד’ שנה שעמד בבית לבן וב’ שנים שעשה בדרך בחזרתו הרי צ”ט. ובאותו הפרק מתה רבקה כדדרשינן (תנחומא כי תצא פי’ ד ורבה קהלת פר’ ז פי’ ב ויש להגיה הציון בתוס’ ד”ה וכן) אלון בכות שבכה שתי בכיות אחת על רבקה ואחת על מינקתה. הא על כרחין לפי חשבון זה רבקה בת י”ד שנים היתה באותה שעה. ולקמן נמי דאמר ליה רבא לרב נחמן ונילוף מיצחק לית להו כתנא דסדר עולם אלא כתנא דספרכי וכדתנא דהכא. ואי קשיא לך אם כן בוגרת היתה והכתוב קראה נערה. יש לומר מדכתיב והנערה שמע מינה לא בגרה עדיין אלא ששהתה מלהביא שתי שערות עד י”ד שנה (עיין רמב”ן).
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9. Midrash Rabbah: Rivka’s Birth and the Akeidah
Bereshit Rabbah 57:1 comments on Genesis 22:20, the report to Abraham that Milkah had borne children. It says that while Abraham was still at Mount Moriah, he received the news that his son’s future spouse had been born.
The key phrase is:
שעד שהוא בהר המוריה נתבשר שנולדה זוגתו של בנו
Translation: “While he was still at Mount Moriah, he received the news that the future wife of his son had been born.”
This Midrash supports a connection between the Akeidah and the birth of Yitzchok’s future wife. It does not, by itself, establish Rivka’s age at marriage. To arrive at three, one must also accept that Yitzchok was thirty-seven at the Akeidah and forty when he married her. The age calculation therefore depends on combining sources.
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10. Seder Olam and Yalkut Shimoni: Historical Background
Seder Olam Rabbah is traditionally attributed to Rabbi Yose ben Halafta, a second-century Tanna. The work is an early rabbinic chronology of biblical history and continues into the period of the Second Temple and the Bar Kokhba revolt. It is reasonable to describe it as an early rabbinic chronological work, but a precise composition date such as “160 CE” should be presented as an approximate scholarly estimate, not as a date established by the text itself.
Yalkut Shimoni is a later Midrashic anthology that gathers material from earlier rabbinic sources. It is 8/9+commonly dated to the medieval period, often the thirteenth century, but the exact date and the identity of its compiler remain matters of scholarly discussion. It is traditionally associated with Shimon ha-Darshan; the identification of the compiler as a particular Shimon of Frankfurt is not certain.
The first printed portion, covering Prophets and Writings, appeared in Salonika in 1521; the Torah portion followed in 1526. These publication details are useful when tracing the history of a text, but they do not establish the date when the underlying traditions first arose.
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11. What the Gemara in Yevamos 61b Actually Says
The relevant passage in Yevamos 61b cites the verse about Rivka:
והנערה טובת מראה מאד בתולה
Translation: “The maiden was very beautiful, a virgin” (Genesis 24:16).
Rav Nachman bar Yitzchok cites the teaching that the term “virgin” in the relevant context refers to a na’arah.
Tosfos notices the apparent difficulty: the Gemara’s language suggests that Rivka was a na’arah, while Seder Olam says she was three when Yitzchok married her. Tosfos then brings Rav Shmuel HaChassid’s fourteen-year calculation and concludes that the Midrashim disagree.
It is important not to overstate the Gemara’s wording. The word na’arah in the verse is part of the textual discussion; the age of fourteen is not stated explicitly in the verse or in the Gemara. It is derived through the Sifrei chronology and the interpretation of the term by the commentators.
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12. Conclusion
The research leads to several conclusions.
First, Rashi clearly presents the three-year chronology. He places Rivka’s birth at the time of the Akeidah, when Yitzchok was thirty-seven, and says that Yitzchok married her when she was three.
Second, Tosfos records a fourteen-year tradition. Rav Shmuel HaChassid derives that age from the Sifrei’s statement that Rivka and Kehat lived 133 years. Tosfos concludes explicitly that the Midrashim disagree.
Third, the Ramban accepts the disagreement between the traditions. He distinguishes the three-year view of Seder Olam from the fourteen-year view in the Sifrei and explains how Rivka could still be called a na’arah at fourteen.
Fourth, the Rashba presents a related calculation, but the version quoted here contains a reading of “four years” at Lavan’s house where the parallel texts read “twenty years.” That textual problem needs to be resolved against a reliable edition before the quotation is finalized.
Fifth, the Gra’s correction requires a more precise source citation and explanation. The original draft’s paraphrase may be too broad. It should not be retained as a firm statement until the exact passage and its context have been checked.
The question is therefore not simply whether Rivka was three or fourteen. The sources preserve competing chronological traditions, and the Rishonim discuss how to understand their disagreement. Tosfos and the Ramban are especially important because they do not insist that every Midrashic chronology must be reconciled.
That, to me, is the most interesting part of the discussion: not only the proposed age of Rivka, but the way the classical commentators handle conflicting traditions and the limits of chronological reconstruction.
Sources for Further Study
- Genesis 17:17; 21:5, 21:34; 22:20; 23:1; 24:16; 25:20, 25:26; 31:41.
- Rashi on Genesis 25:20.
- Seder Olam Rabbah, chapter 1; compare the textual readings of בת י״ד and בת ג׳.
- Tosfos, Yevamos 61b, s.v. וכן הוא אומר והנערה טובת מראה מאד.
- Sifrei Devarim, Parshas V’zos HaBerachah, section 357, the list of six pairs whose lifespans were equal.
- Ramban, Chiddushei HaRamban to Yevamos 61b.
- Rashba, Chiddushei HaRashba to Yevamos 61b; verify the reading of ד׳ שנה in the edition used.
- Vilna Gaon, commentary to Seder Olam Rabbah; supply the exact edition, chapter, and page before publication.
- Bereshit Rabbah 57:1.
- Yevamos 61b; Megillah 17a; Genesis 31:41.
- For the historical dating and authorship of Seder Olam and Yalkut Shimoni, consult scholarly introductions or critical editions rather than relying on an uncited date or attribution.
