Thematic Bible: When left childless, to be married by their husband's nearest of kin

If brethren shall dwell together, and one of them shall die and have no child, the wife of the dead shall not marry without to a stranger: her husband's brother shall go in to her, and take her to him for a wife, and perform the duty of a husband's brother to her. And it shall be, that the first-born which she beareth, shall succeed in the name of his brother who is dead, that his name may not become extinct in Israel.