Genesis 38:8

The English Standar Version

Then Judah said to Onan, "Go in to your brother's wife and perform the duty of a brother-in-law to her, and raise up offspring for your brother."

Cross References

Genesis 19:31

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

Leviticus 18:16

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

Ruth 1:11

But Naomi said, "Turn back, my daughters; why will you go with me? Have I yet sons in my womb that they may become your husbands?