Genesis 19:31-36

31The older daughter said to the younger one, “Our father is old. No men are here. We can’t get married as other people do.

32Let’s give our father wine to drink. Then we’ll go to bed with him so that we’ll be able to preserve our family line through our father.”

33That night they gave their father wine to drink. Then the older one went to bed with her father. He didn’t know when she came to bed or when she got up.

34The next day the older daughter said to the younger one, “I did it! Last night I went to bed with my father. Let’s give him wine to drink again tonight. Then you go to bed with him so that we’ll be able to preserve our family line through our father.”

35That night they gave their father wine to drink again. Then the younger one went to bed with him. He didn’t know when she came to bed or when she got up.

36So Lot’s two daughters became pregnant by their father.