Cross reference
Ruth 1:11
11 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?
Deuteronomy 25:5
5 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.
Genesis 38:11
11 Then said Judah to Tamar his daughter-in-law, Remain a widow in thy father's house, till Shelah my son be grown up; for he said, Lest he also die, like his brethren. And Tamar went and dwelt in her father's house.