Genesis 19:35-37

American Standard Version

³⁵ And they made their father drink wine that night also: and the younger arose, and lay with him; and he knew not when she lay down, nor when she arose. ³⁶ Thus were both the daughters of Lot with child by their father. ³⁷ And the first-born bare a son, and called his name Moab: the same is the father of the Moabites unto this day.