Matthew 14:1-5

At that time Herod [Antipas], the tetrarch [who governed a portion of Palestine including Galilee and Perea], heard the reports about Jesus, [Luke 9:7-9] and said to his attendants, “This is John the Baptist; he has been raised from the dead, and that is why the miraculous powers are at work in him.” For Herod had John arrested and bound him and put him in prison [at the fortress of Machaerus, east of the Jordan, to keep him away] because of Herodias, the wife of his brother Philip, [Mark 6:17; Luke 3:19] for John had said to him, “It is not lawful (morally right) for you to have her [living with you as your wife].” [Lev 18:16; 20:21] Although Herod wished to have him put to death, he feared the people, for they regarded John as a prophet.