Genesis 19:35-37

Modern English Version

³⁵ So they made their father drink wine that night also. Then the younger arose and lay down with him, and he did not know when she lay down or when she arose.

³⁶ Therefore both the daughters of Lot were pregnant by their father. ³⁷ The firstborn bore a son and called his name Moab. He is the father of the Moabites to this day.