Catena Aurea on Mark 6:14–16: Pseudo-Chrysostom

Is seems to me that this prophet means that one of whom Moses said, “God will raise up a prophet unto thee of thy brethren.” [Deut 18:15] They were right indeed, but because they feared to say openly, This is the Christ, they used the voice of Moses, veiling their own surmise through fear of their rules.

There follows: “But when Herod heard thereof, he said, It is John, whom I beheaded: he is risen from the dead.” Herod expressly says this in irony.