Mark 6:17
For Herod himself had sent and had had John arrested and had kept him in prison in chains, for the sake of Herodias, his brother Philip's wife; because he had married her.
Matthew 11:2
Now John had heard in prison about the Christ's doings, and he sent some of his disciples to inquire:
Luke 3:19-20
But Herod the Tetrarch, being repeatedly rebuked by him about Herodias his brother's wife, and about all the wicked deeds that he had done,
Matthew 4:12
Now when Jesus heard that John was thrown into prison, He withdrew into Galilee,
Matthew 14:3-12
For Herod had arrested John, and had put him in chains, and imprisoned him, for the sake of Herodias his brother Philip's wife,
Luke 3:1
Now in the fifteenth year of the reign of Tiberius Caesar, Pontius Pilate being Governor of Judaea, Herod Tetrarch of Galilee, his brother Philip Tetrarch of Ituraea and Trachonitis, and Lysanias Tetrarch of Abilene,