Mark 6:21

17For Herod himself had sent out and arrested John and bound him in prison for the sake of Herodias, his brother Philip’s wife, for he had married her.

18For John had said to Herod, “It is not lawful for you to have your brother’s wife.”

19Herodias set herself against him and desired to kill him, but she couldn’t,

20for 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.

21Then a convenient day came when Herod on his birthday made a supper for his nobles, the high officers, and the chief men of Galilee.

22When the daughter of Herodias herself came in and danced, she pleased Herod and those sitting with him. The king said to the young lady, “Ask me whatever you want, and I will give it to you.”

23He swore to her, “Whatever you ask of me, I will give you, up to half of my kingdom.”

24She went out and said to her mother, “What shall I ask?” She said, “The head of John the Baptizer.”

25She came in immediately with haste to the king and requested, “I want you to give me right now the head of John the Baptizer on a platter.”