Mwanzo 19:34

Siku iliyofuata binti mkubwa akamwambia yule mdogo, “Usiku uliopita mimi nilikutana kimwili na baba yangu. Tumnyweshe divai tena, usiku huu nawe ukutane naye kimwili ili tuweze kuhifadhi uzao wetu kupitia baba yetu.”

And it came to pass on the morrow, that the firstborn said unto the younger, Behold, I lay yesternight with my father: let us make him drink wine this night also; and go thou in, and lie with him, that we may preserve seed of our father.