Mark 6:18-20 For John had said to Herod, It is not lawful for you to have your brother's wife.

AKJV⁽ⁱ⁾ ¹⁸ For John had said to Herod, It is not lawful for you to have your brother's wife. ¹⁹ Therefore Herodias had a quarrel against him, and would have killed him; but she could not: ²⁰ For Herod feared John, knowing that he was a just man and an holy, and observed him; and when he heard him, he did many things, and heard him gladly.