Genesis 19:30-32

19:30 Lot went up from Zoar with his two daughters and settled in the mountains because he was afraid to live in Zoar. So he lived in a cave with his two daughters. 19:31 Later the older daughter said to the younger, “Our father is old, and there is no man anywhere nearby to have sexual relations with us, according to the way of all the world. 19:32 Come, let’s make our father drunk with wine so we can have sexual relations with him and preserve our family line through our father.”