Leviticus 20:21

20:21 If a man has sexual intercourse with his brother’s wife, it is indecency. He has exposed his brother’s nakedness; they will be childless.

Deuteronomy 25:5

Respect for the Sanctity of Others

25:5 If brothers live together and one of them dies without having a son, the dead man’s wife must not remarry someone outside the family. Instead, her late husband’s brother must go to her, marry her, and perform the duty of a brother-in-law.

Matthew 14:3-4

14:3 For Herod had arrested John, bound him, and put him in prison on account of Herodias, his brother Philip’s wife, 14:4 because John had repeatedly told him, “It is not lawful for you to have her.”

Matthew 22:24

22:24 “Teacher, Moses said, ‘If a man dies without having children, his brother must marry the widow and father children for his brother.’

Mark 6:17

6:17 For Herod himself had sent men, arrested John, and bound him in prison on account of Herodias, his brother Philip’s wife, because Herod had married her.

Mark 12:19

12:19 “Teacher, Moses wrote for us: ‘If a man’s brother dies and leaves a wife but no children, that man must marry the widow and father children for his brother.’

Luke 3:19

3:19 But when John rebuked Herod the tetrarch because of Herodias, his brother’s wife, and because of all the evil deeds that he had done,