Genesis 19:34

And it came to pass on the morrow, that the elder said to the younger, Behold, I slept yesternight with our father, let us make him drink wine in this night also, and do thou go in and sleep with him, and let us raise up seed of our father.

And it came to pass on the morrow, that the elder said to the younger, Behold, I slept yesternight with our father, let us make him drink wine in this night also, and do you go in and sleep with him, and let us raise up seed of our father.

It came to pass on the next day, that the firstborn said to the younger, “Behold, I lay last night with my father. Let’s make him drink wine again tonight. You go in, and lie with him, that we may preserve our father’s family line.”