Genesis 19:33

So they made their father drink wine that night . And the firstborn went in and lay with her father . He did not know when she lay down or when she arose .

That night they got their father to drink wine, and the older daughter went in and slept with him. He was not aware of it when she lay down or when she got up.

And they made their father drink wine that night : and the firstborn went in, and lay with her father; and he perceived not when she lay down, nor when she arose.