“Teacher, Moses wrote for us that ‘if a man’s brother dies and leaves a wife but no children, then his brother should take the widow and father children for his brother.’
For Herod himself sent and arrested John and bound him in prison for the sake of Herodias, the wife of his brother Philip, because Herod had married her.
“If brothers dwell together and one of them dies and has no son, the dead man’s wife is not to be married outside to a stranger. Her husband’s brother is to go to her and take her as his wife, and perform the duty of a brother-in-law.