TSK · Genesis 38:8

Thou shalt not uncover the nakedness of thy brother's wife: it is thy brother's nakedness.

If brethren dwell together, and one of them die, and have no son, the wife of the dead shall not be married without unto a stranger: her husband's brother shall go in unto her, and take her to him to wife, and perform the duty of a husband's brother unto her.

And Naomi said, Turn again, my daughters: why will ye go with me? have I yet sons in my womb, that they may be your husbands?

And the near kinsman said, I cannot redeem it for myself, lest I mar mine own inheritance: take thou my right of redemption on thee; for I cannot redeem it.