Przysłów 18:1 Midrasz: Aggadat Bereshit & Bereshit Rabbah

[2] Another interpretation: And Abraham traveled from there. "I have not sat with false people and I will not go with the deceitful" (Psalms 26:4). The false people are the people of Sodom and their associates, and the deceitful are Lot and his daughters. As it is written above, "Do not look behind you" (Genesis 19:17). Just as you should not look at prostitutes, as it says, "For a harlot is a deep pit" (Proverbs 23:27). Lot said to them, "What shall I do?" They said to him, "Go to Abraham," as it says, "The mountain, flee!" (Genesis 19:17). This refers to Abraham who was called a mountain, as it says, "Hear, O mountains" (Micah 6:2). He said to them, "Abraham is a completely righteous man and I cannot go to him," as it says, "And I cannot" (Genesis 19:19). Why? Because as long as Sodom and Gomorrah existed, I sat among them and appeared righteous among them, and the Holy One, blessed be He, would observe my actions and theirs, and I would appear righteous in their eyes. But now, if I go to Abraham, he is a completely righteous man, and if the Holy One, blessed be He, observes my actions and theirs, if I am found to be wicked in His eyes, He will destroy me. Therefore, "I cannot" (Genesis 19:19). Instead, "Behold, this town" (Genesis 19:20). He did all these things so that he could go to the cave to engage in immorality, as it says, "And Lot went up...and the elder daughter said" (Genesis 19:30). And from the beginning, when he was with Abraham, he desired to engage in immorality, as when Abraham said to him, "Let there be no quarrel between you and me" (Genesis 13:8). "Separate yourself" (Genesis 13:9). Immediately, "And Lot lifted up his eyes" (Genesis 13:10). The word "lifted up" only refers to desire for immorality, as it says, "And the wife of his master lifted up her eyes" (Genesis 39:7). "And he saw all the plain" (Genesis 13:10), for the sake of a harlot one can travel a distance of a kilometer (Proverbs 6:26). "For [they were afraid] that the drink would fail" (Genesis 13:10). "And they made their father drink wine that night" (Genesis 19:33) - At first, Lot had a desire for immorality, which is why Abraham said, "Please separate from me," etc., and Lot thought he sinned and no one knew. Rabbi Berechiah said, "The Holy One, blessed be He, said to Lot: 'What, do you think you have sinned and no one knows? Your descendants will be called "Moab" and "Ammon," as it says, 'So both of Lot's daughters became pregnant by their father' " (Genesis 19:36), and similarly, Solomon said to desire, "Depart from me, you who are a deceiver" (Proverbs 1:10). When Abraham saw this, he said, "What am I seeking from these people?" Immediately he left there. Therefore it is said, "And with the crafty, you will not come" (Psalms 26:4). And the Holy One, blessed be He, judged them according to their deeds: Lot's daughters were deserving of being burned in fire, but the Holy One, blessed be He, judges only according to thoughts, which they thought and said, "Our father is old and there is no man on earth to come to us" (Genesis 19:31). It can be compared to a priest who had a field, sowed it with a tenant farmer, and the field did not produce. When the owner of the field asked for his share, the tenant farmer said, "There was no seed for us to sow." The priest asked him, "Did you see that there was no seed to sow?" He replied, "Yes, I saw it, so I took the tithes and sowed them, and the field produced a crop." The priest said to him, "What did you do?" He replied, "Since I saw there was no seed, I did this." But the priest said to him, "You should not have put it in the storehouse." Similarly, Lot's daughters saw that there was no man in those places, and furthermore, they thought that there was no creature in the world, as they said, "The world is turned over just as Sodom was overturned," as it says, "There is no man on earth," etc. "Come, let us make our father drink wine" etc. They sowed their seed like tithes. The Holy One, blessed be He, said, You deserved to be burned, but since you intended to build the world, you will not be admitted to the treasury. "No Ammonite or Moabite shall enter the congregation of the Lord" (Deuteronomy 23:4). (This raises a question: This is written regarding a matter that did not precede you [i.e., the generation that left Egypt], so why should it apply to you?) Immediately, Abraham said, "I will not come to terms with hidden people; I have nothing to do with those about whom it is written, 'No Ammonite or Moabite shall enter.'" (Babylonian Talmud, Yevamot 76b:15) and he left.

“Lot’s two daughters conceived from their father” (Genesis 19:36).
“Lot’s two daughters conceived from their father” – Rabbi Elazar said: A woman never conceives from her initial act of intercourse. But is it not written: “Lot’s two daughters conceived from their father”? (Genesis 19:36). Rabbi Tanḥuma said: They manipulated themselves, broke their hymen, and conceived as though it were from a second act of intercourse.
Rav Naḥman bar Ḥanin said: Anyone who has a ravenous appetite for sexual relations will ultimately be fed his own flesh.²³A metaphor for incest. Rabbi Yudan of Gaul and Rabbi Shmuel bar Naḥman, both in the name of Rabbi Elyehoeini: We do not know whether Lot lusted after his daughters or his daughters lusted after him. From what is written: “The isolated one²⁴Lot, who was isolated from Abraham. seeks lust” (Proverbs 18:1), we see that Lot lusted after his daughters, but his daughters did not lust after him.
Rabbi Tanḥuma bar Rabbi Ḥiyya in the name of Rabbi Hoshaya the interpreter: There is no Shabbat on which one does not read the passage about Lot.²⁵In those days there was apparently a practice to recite the passage about Lot every Shabbat, to warn people not to overindulge in wine. What is the source for this? “The isolated one seeks lust, with all tushiya²⁶Tushiya is a reference to Torah (see Sanhedrin 26a). he will be exposed”²⁷The shame of Lot is exposed for all to reflect upon. (Proverbs 18:1). Rabbi Aḥa said: “They will be exposed” is not written here, but rather, “he will be exposed” – the men [of Amon and Moav] were distanced, but the women were drawn near.²⁸The shame of Lot is preserved for all time, in that the Torah prohibits Moavite and Amonite men from marrying Israelite women (Deuteronomy 23:4). The shame of Lot’s daughters is not preserved, however, because Moavite and Amonite women may marry Israelite men.