Mark 6:17
For Herod captured John and locked him in prison for the sake of Herodias his wife. She was his brother Philip's wife before he married her.
Matthew 11:2
While in prison, John heard news of what Christ was doing. He sent his disciples.
Luke 3:19-20
John reproved Herod the tetrarch for all the evil things he had done for he took his brother Herodias' wife.
Matthew 4:12
Jesus heard that John had been arrested. So Jesus withdrew to Galilee.
Matthew 14:3-12
Herod locked John in prison to please Herodias, his brother Philip's wife.
Luke 3:1
It was the fifteenth year of the reign of Tiberius Caesar. Pontius Pilate was governor of Judaea. Herod served as tetrarch of Galilee. Herod's brother Philip was tetrarch of the region of Ituraea and Trachonitis. Lysanias was tetrarch of Abilene.