Genesis 19:35-37

New King James Version

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

³⁶ Thus both the daughters of Lot were with child by their father. ³⁷ The firstborn bore a son and called his name Moab; ^(A)he is the father of the Moabites to this day.