Now [because of this] Herodias had a grudge against John and wanted to kill him, but had not been able to.
For Herod had arrested John and had him chained and put in prison in order to please Herodias, his brother Philip’s wife.
But when Herod’s birthday came, Herodias’ daughter [Note: According to Josephus, her name was Salome], pleased him by [her sensual] dancing in front of the party guests.