Genesis 38:8

American King James Version (1999)

And Judah said to Onan, Go in to your brother's wife, and marry her, and raise up seed to your brother.

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And Naomi said, Turn again, my daughters: why will you go with me? are there yet any more sons in my womb, that they may be your husbands?

You shall not uncover the nakedness of your brother's wife: it is your brother's nakedness.

And the firstborn said to the younger, Our father is old, and there is not a man in the earth to come in to us after the manner of all the earth: