Mark 6:17-21

For Herod himself had sent men and had John arrested and bound in prison on account of Herodias, the wife of his brother Philip, because he had married her.

For John had been saying to Herod, “It is not lawful for you to have your brother’s wife.”

And Herodias held a grudge against him and wanted to put him to death, and could not do so;

for Herod was afraid of John, knowing that he was a righteous and holy man, and he had been protecting him. And when he heard him, he was very perplexed; and yet he used to enjoy listening to him.

An opportune day came when Herod, on his birthday, held a banquet for his nobles and military commanders, and the leading people of Galilee;