Deuteronomy 25:5

Laws Concerning Levirate Marriage

5 aIf brothers dwell together, and one of them dies and has no son, the wife of the dead man shall not be married outside the family to a stranger. Her bhusband’s brother shall go in to her and take her as his wife and perform the duty of a husband’s brother to her.

Matthew 22:24

24saying, “Teacher, Moses said, cIf a man dies having no children, his brother must marry the widow and raise up offspring for his brother.’
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