Mark 6:19-23

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;

and when the daughter of Herodias herself came in and danced, she pleased Herod and his dinner guests; and the king said to the girl, “Ask me for whatever you want, and I will give it to you.”

And he swore to her, “Whatever you ask of me, I will give it to you, up to half of my kingdom.”