Genesis 19:35-38

35 So they got their father to drink wine that night also, and the younger daughter went in and slept with him. Again he was not aware of it when she lay down or when she got up.
36 So both of Lot’s daughters became pregnant by their father.
37 The older daughter had a son, and she named him Moaba ; he is the father of the Moabites of today.
38 The younger daughter also had a son, and she named him Ben-Ammib ; he is the father of the Ammonitesc of today.
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