Now, when Jesus had heard that John was cast into prison,.... John was cast into prison by Herod; the reason of it may be seen in Mt 14:3. The prison into which he was cast, according to Josephus , was the castle of Machaeras: here he continued some time before he was put to death; for from hence he sent two disciples to Jesus, to know if he was the Messiah, Mt 11:2.
Now when Jesus heard of this his imprisonment,he departed into Galilee; not so much on account of safety, or for fear of Herod, but to call his disciples, who lived in that country. Antiq. l. 18. c.