TSK
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If brothers dwell together, and one of them die, and have no son, the wife of the dead shall not be married outside to a stranger: her husband's brother shall go in to her, and take her to him as wife, and perform the duty of a husband's brother to her.
Naomi said to her daughter-in-law, "Blessed be he of Yahweh, who has not left off his kindness to the living and to the dead." Naomi said to her, "The man is a close relative to us, one of our near kinsmen."
The near kinsman said, "I can't redeem it for myself, lest I mar my own inheritance. Take my right of redemption for yourself; for I can't redeem it."
saying, "Teacher, Moses said, 'If a man dies, having no children, his brother shall marry his wife, and raise up seed for his brother.'
For men indeed swear by a greater one, and in every dispute of theirs the oath is final for confirmation.