Mark 6:19 KJV
Therefore Herodias had a quarrel against him, and would have killed him; but she could not:
Mark 6:17–21 KJV Chapter Context
17
For Herod himself had sent forth and laid hold upon John, and bound him in prison for Herodias’ sake, his brother Philip’s wife: for he had married her.
18
For John had said unto Herod, It is not lawful for thee to have thy 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.
21
And when a convenient day was come, that Herod on his birthday made a supper to his lords, high captains, and chief estates of Galilee;