Mark 6:19 in the King James Version
Therefore Herodias had a quarrel against him, and would have killed him; but she could not:
Context
18 For John had said to Herod, “It is not lawful for you to have your brother’s wife.”
19 Herodias set herself against him and desired to kill him, but she couldn’t,
20 for Herod feared John, knowing that he was a righteous and holy man, and kept him safe. When he heard him, he did many things, and he heard him gladly.