Genesis 19:32

19:32 Come, let’s make our father drunk with wine so we can have sexual relations with him and preserve our family line through our father.”

Genesis 19:34

19:34 So in the morning the older daughter said to the younger, “Since I had sexual relations with my father last night, let’s make him drunk again tonight. Then you go and have sexual relations with him so we can preserve our family line through our father.”