Genesis 19:35-37

Living Bible

³⁵ So they got him drunk again that night, and the younger girl went in and lay with him, and, as before, he didn’t know that anyone was there. ³⁶ And so it was that both girls became pregnant from their father. ³⁷ The older girl’s baby was named Moab; he became the ancestor of the nation of the Moabites.