Genesis 19:29-31 Revised Standard Version (RSV)
29 So it was that, when God destroyed the cities of the valley, God remembered Abraham, and sent Lot out of the midst of the overthrow, when he overthrew the cities in which Lot dwelt.
The Shameful Origin of Moab and Ammon
30 Now Lot went up out of Zo′ar, and dwelt in the hills with his two daughters, for he was afraid to dwell in Zo′ar; so he dwelt in a cave with his two daughters. 31 And the first-born said to the younger, “Our father is old, and there is not a man on earth to come in to us after the manner of all the earth.