Genesis 19:36

“Thus were both the daughters of Lot with child by their father.] We learn from hence what the best of men are when left to themselves; a good man, a righteous Lot, is guilty of crimes the most shocking; he exposed the chastity of his daughters to the men of Sodom, and now his daughters attacked him, and succeeded, being both with child by him; and this brought about by excessive drinking, a sin which often leads on to the foulest crimes, and therefore to be carefully avoided; these sins Lot fell into when as it were alone, on a mountain, in a cave, none but his family with him, and these only his two daughters; he that had stood his ground in the midst of Sodom, notwithstanding all the…”

“- The Destruction of Sodom and Amorah 9. גשׁ־הלאה gesh-hāl'âh, “approach to a distant point,” stand back. 11. סנורים sanevērı̂ym, “blindness,” affecting the mental more than the ocular vision. 37. מואב mô'āb, Moab; מאב mē'āb, “from a father.” בן־עמי ben-‛amı̂y, Ben-‘ammi, “son of my people.” עמון ‛amôn, ‘Ammon, “of the people.” This chapter is the continuation and conclusion of the former. It records a part of God’s strange work - strange, because it consists in punishment, and because it is foreign to the covenant of grace. Yet it is closely connected with Abraham’s history, inasmuch as it is a signal chastisement of wickedness in his neighborhood, a memorial of the righteous…”

“19:36-38 The daughters’ plan worked, and they each became pregnant by their own father. From these two incest-born sons came two perennial enemies of Israel, the nations of Moab and Ammon. Their grotesque wickedness was due in part to their origin. • Both daughters chose ambiguous names that hinted at their actions without raising the suspicions of those who did not know the stories.”