Mark 12:19
"Teacher, Moses wrote to us, 'If a man's brother dies, and leaves a wife behind him, and leaves no children, that his brother should take his wife, and raise up offspring for his brother.'
Genesis 38:8
Judah said to Onan, "Go in to your brother's wife, and perform the duty of a husband's brother to her, and raise up seed to your brother."
Deuteronomy 25:5-10
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.
Ruth 1:11-13
Naomi said, "Go back, my daughters. Why do you want to go with me? Do I still have sons in my womb, that they may be your husbands?
Ruth 4:5
Then Boaz said, "On the day you buy the field from the hand of Naomi, you must buy it also from Ruth the Moabitess, the wife of the dead, to raise up the name of the dead on his inheritance."