Mark 12:19
Teacher, Moses wrote to us, If a man's brother die and leaves his wife, and leaves no children, his brother should take his wife and raise up seed to his brother.
Genesis 38:8
And Judah said to Onan, Go in to your brother's wife, and marry her, and raise up seed to your brother.
Deuteronomy 25:5-10
If brothers live together, and one of them dies and has no child, the wife of the dead shall not marry outside to a stranger. Her husband's brother shall go in to her and take her as a wife for himself, and perform the duty of a husband's brother to her.
Ruth 1:11-13
And Naomi said, Turn again, my daughters. Why will you go with me? Are there yet sons in my womb, that they may be your husbands?
Ruth 4:5
And Boaz said, In the day you buy the field from the hand of Naomi, you must buy also from the hand of Ruth of Moab, the wife of the dead, to raise up the name of the dead upon his inheritance.