"It is not lawful". Yikes. Just try saying that to a guy who in his mind, MAKES THE LAW.
We see here a chess match that is won by Herod's wife Herodias. Because of God's law, she is referred to as still being married to Herod's brother.
Then there is some dancing by a young step daughter that causes promises to be made before lots of guests at a birthday party.
The curtain comes down quickly as John the Baptist is immediately beheaded. Why is this in the Bible? Listen and wonder with me.