Génesis 26:8 Midrash: Midrash Aggadah, Aggadat Bereshit & Bereshit Rabbah

When some time had passed etc. He thought that since Abimelech had not taken his wife already, that he could banish the thought from his mind (that he would take her).

Chapter 40: Torah [1] And it came to pass, that when Isaac was old (Genesis 27:1). Twenty generations passed until Abraham, in which old age is not mentioned except for him, as it says, "Now Abraham was old" (Genesis 24:1). And Isaac also stood [before God] and it came to pass, that when Isaac was old (Genesis 27:1). And Jacob also stood [before God], as it says, "And the eyes of Israel were dim with age" (Genesis 48:10). The verse (Psalms 102:17) says, "He will regard the prayer of the destitute, and not despise their prayer." The only way [to achieve this level of prayer] is through old age, as it says, "The beauty of young men is their strength, and the glory of old men is their gray hair" (Proverbs 20:29). Abraham merited his son through five things, as our Rabbis taught: the father merits a son through five things: through his [the father's] name, through his [the father's] good deeds, through his [the father's] wealth, through his [the father's] strength, and through his [the father's] wisdom. Similarly, Isaac [merited his son through five things], and similarly Jacob [merited his son through five things]. Similarly, Jacob merited Joseph [through these five things], who resembled him in appearance and in title, as it says, "And Joseph was handsome in form and appearance" (Genesis 39:6). [He resembled him] in wisdom, as it says, "Behold, he is the master of dreams" (Genesis 37:19). He had beauty, appearance, and wisdom. And in Isaac's case, it is written, "Who is this man?" (Genesis 24:65). What is the meaning of "this man" in reference to Joseph? That he was handsome and had wisdom. Likewise, Isaac was also built with wisdom. And just as Joseph stood up to his brothers in strength, so did Isaac stand up in strength against all the men of Gerar. Just as Joseph was wealthy, so was Isaac wealthy, as it says, "And the man became great and went forward and became very great" (Genesis 26:13). The verse (Genesis 26:8) explains [the word] "wisdom" as meaning "the greatness of his children." From where do we learn that Isaac was handsome like Joseph? It is written about Joseph, "And Joseph was handsome in form and appearance," and when he went to his brothers, what did they say? "Behold, the master of dreams is coming!" (Genesis 37:19). And it is said about Isaac, "Who is this man?" (Genesis 24:65). What is the meaning of "this man" in reference to Joseph? That he was handsome and had wisdom. Likewise, Isaac was also built with strength, as it says, We know this from the fact that he dug many wells, as it says, "Isaac dug again the wells of water" (Genesis 26:18), and "Isaac's servants dug in the valley" (Genesis 26:19), and "they dug another well" (Genesis 26:21). He had strength in his hands. From where do we know that he was wealthy? It says, "The man became great, and he grew richer and richer until he was very wealthy" (Genesis 26:13). And from where do we know that he lived to a ripe old age of 180 years? It says, "And Isaac lived one hundred and eighty years" (Genesis 35:28). Abraham was the son of Terah, and Isaac was the son of Abraham. Why does the Torah mention this? Because God said to Isaac, "You have merited these five things, so I will add another five years to your life, like your father Abraham." That is why it says, "Look upon your servants" (Psalms 119:16). Anyone who has merit will receive these five things, and anyone who does not have merit will receive five calamities in return. And who was this? Joab, as it is said: "Let Joab and his descendants be perpetually guilty of their bloodshed. May they be afflicted with leprosy, jaundice, and starvation." (2 Samuel 3:29) Leprosy corresponds to strength; one who has leprosy has no strength. Jaundice corresponds to beauty; even if someone is young and jaundiced, there is no beauty in them. Starvation corresponds to wealth, as it says, "Come, eat my food and drink the wine I have mixed. Leave your simple ways and you will live" (Proverbs 9:5-6). One who is starving has no leisure to engage in Torah study. Falling by the sword corresponds to the five aspects of praise. These are five calamities corresponding to five aspects of praise. One who does not merit praise inherits these five kinds of calamities, like Joab. But one who does merit praise receives them like Isaac, as it is said, "And it came to pass, when Isaac was old" (Genesis 27:1), and David cries out, "May your children be like your ancestors" (Psalms 45:17). Therefore, it says, "And it came to pass, when Isaac was old."

“It was when the time he was there was extended, Avimelekh king of the Philistines looked through the window, and behold, he saw Isaac playing with Rebecca his wife” (Genesis 26:8).
“It was when the time he was there was extended” – Rabbi Yoḥanan said: A bad dream, a harsh prophecy, and disproportionate mourning are nullified by the passage of extended time. A harsh prophecy, from where is it derived? It is as Israel would say to the prophet: “The days will lengthen, and every vision will be void” (Ezekiel 12:22). Disproportionate mourning, the passage of extended time nullifies, from Isaac,¹³Isaac had been mourning for Abraham. as it is written: “It was when the time he was there was extended,” and immediately, “behold…Isaac was playing.” Rabbi Ḥiyya bar Abba said: Because extended time had passed, you began engaging in this matter?¹⁴A reference to conjugal relations. This is the way the midrash interprets "playing." Did Rabbi Yoḥanan not say: One who engages in conjugal relations during the day, it is indecent, as Rabbi Yoḥanan said: Conjugal relations are only at night, as it is stated: “In the evening she would come and in the morning she would return” (Esther 2:14). Job cursed the day of his birth and the evening of his conception. That is what is written: “Perish the day I was born, and the night it was said: [A man has been conceived [hora gaver]]” (Job 3:3). Rabbi Marinos bar Hoshaya said: Job said: ‘If only my mother had been a menstruant when he came to consort with her, as it is stated: “Hora gaver” – this is not the time to be impregnated [hora] by a man [gaver].’ Jeremiah curses the day of his birth and the day of conception, as it is stated: “Cursed be the day on which I was born” (Jeremiah 20:14) – this is the day of birth; “the day on which my mother bore me” (Jeremiah 20:14) – this is the day of conception. Is it possible that Ḥilkiyahu,¹⁵The father of Jeremiah. See Jeremiah 1:1. a righteous man, would engage in conjugal relations during the day? It is, rather, because Jezebel was killing prophets, he came and engaged in conjugal relations during the day, and fled.