Genesis 19:31-33

Amplified Bible

³¹ The firstborn said to the younger, “Our father is aging, and there is not a man on earth [available] to be intimate with us in the customary way [so that we may have children]. ³² Come, let us make our father drunk with wine, and we will lie with him so that we may preserve our family through our father.” ³³ So they gave their father wine that night, and the firstborn went in and lay with her father; and he did not know when she lay down or when she got up [because he was completely intoxicated].