Genesis 19:31-33

Revised Standard Version Catholic Edition

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. ³² Come, let us make our father drink wine, and we will lie with him, that we may preserve offspring through our father.” ³³ So they made their father drink wine that night; and the first-born went in, and lay with her father; he did not know when she lay down or when she arose.