Rabbi Yehoshua ben Levi will tell you which came first, the chicken or the egg TB Rosh Hashana 11

 Beginning at the very bottom of TB Rosh Hashana 10b and at the very top of today’s daf TB Rosh Hashana 11 we learn of a basic disagreement between Rabbi Eliezer and Rabbi Yehoshua.

“It is taught in a baraita that the tanna’im disagreed about this point: Rabbi Eliezer says: In Tishrei the world was created; in Tishrei the Patriarchs were born; in Tishrei the Patriarchs died; on Passover Isaac was born; on Rosh HaShana Sarah, Rachel, and Hannah were remembered by God and conceived; on Rosh HaShana Joseph came out from prison; on Rosh HaShana our forefathers’ slavery in Egypt ceased; in Nisan the Jewish people were redeemed from Egypt; and in Tishrei in the future the Jewish people will be redeemed in the final redemption with the coming of the Messiah.

“Rabbi Yehoshua disagrees and says: In Nisan the world was created; in Nisan the Patriarchs were born; in Nisan the Patriarchs died; on Passover Isaac was born; on Rosh HaShana Sarah, Rachel, and Hannah were remembered by God and conceived sons; on Rosh HaShana Joseph came out from prison; on Rosh HaShana our forefathers’ slavery in Egypt ceased; in Nisan the Jewish people were redeemed from Egypt; and in Nisan in the future the Jewish people will be redeemed in the final redemption.” (Sefaria.org translation)

Most of the daf provides scriptural proof text for each rabbi’s position. We are so influenced by the High Holiday makhzor that the world was created on Rosh Hashanah, we are surprised to learn that Rabbi Yehoshua believes the world was created in Nisan. We shall be further surprised to learn later on that the Tosefot side with Rabbi Yehoshua!

I encourage you to study the whole daf because it is a source of many classic explanations of the Torah. I’ll share just two of them. The first answers the question “What came first, the chicken or the egg?” The second relates to this week’s Torah portion concerning Isaac’s birth.

Based on his close reading of the first chapter of Genesis, Rabbi Yehoshua ben Levi answers the question “What came first, the chicken or the egg?” “Rabbi Yehoshua ben Levi said: All the acts of Creation were created with their full stature, immediately fit to bear fruit; they were created with their full mental capacities; they were created with their full form. As it is stated: “And the heavens and the earth were finished, and all their host” (Genesis 2:1). Do not read it as “their host [tzeva’am]”; rather, read it as their form [tzivyonam], which implies that the trees were created filled with ripe fruit.” (Sefaria.org translation) based on this interpretation the chicken had to be created before the egg since the chicken was created in its full form.

In this week’s Torah portion Vayera three angels visit Abraham and Sarah and tell them that Sarah will become pregnant and give birth to a son. Both Rabbi Eliezer and Rabbi Yehoshua agree that Isaac will be born on Passover.

“It was taught in the baraita: On Passover Isaac was born. The Gemara asks: From where do we derive this? As it is written that the angel who informed Sarah that she would bear a son told Abraham: “At the appointed time [mo’ed] I will return to you, at this season, and Sarah shall have a son” (Genesis 18:14). This is understood to mean: At the time of the next Festival [mo’ed]. When did the angel say this? If we say that it was on Passover and he said to him that Sarah would have a son on Shavuot, can a woman give birth after only fifty days? Rather, say that it was Shavuot and he said that she would give birth on the Festival that occurs in the month of Tishrei, i.e., Sukkot. But still, can she give birth after only five months? Rather, you must say that it was Sukkot, and he spoke about the Festival that occurs in the month of Nisan, i.e., Passover.

“The Gemara asks further: But still, can a woman give birth after only six months? The Gemara answers: A Sage taught in a baraita: That year was a leap year, in which an additional month of Adar was added before Nisan, and a woman can indeed give birth after seven months. The Gemara raises another question: Ultimately, if one deducts Sarah’s days of ritual impurity, as when the angel spoke Sarah had not yet conceived, and there is a tradition that on that day she began menstruating, as is alluded to in the verse: “After I am grown old, shall I have pleasure” (Genesis 18:12), there are less than seven months.

“Mar Zutra said: Even according to the one who said that if a woman gives birth to a viable baby in her ninth month, she cannot give birth prematurely, and if she does not complete nine full months’ gestation the baby will not survive, nevertheless, if a woman gives birth in her seventh month, she may give birth early, before the seventh month is complete. As it is stated about the birth of Samuel: “And it came to pass after cycles of days that Hannah conceived and bore a son” (I Samuel 1:20), which is understood as follows: The minimum of “cycles,” seasons of three months, is two, and the minimum of “days” is two. Consequently, it is possible for a woman to give birth after a pregnancy of six months and two days.” (Sefaria.org translation)

Isaac is the first recorded premature baby in the world!