Mark 6:22-25

22And when the daughter of the said Herodias came in, and danced, and pleased Herod and them that sat with him, the king said to the girl, Ask of me whatever thou wilt, and I will give it thee. 23And he swore to her, Whatever thou shalt ask of me, I will give it thee, to the half of my kingdom. 24And she went forth, and said to her mother, What shall I ask? And she said, The head of John the Baptist. 25And she came in immediately with haste to the king, and asked, saying, I will that thou shouldest give me immediately on a platter the head of John the Baptist.