Matthew 14:2

he The Greek is emphatic, "he himself," "in his own person."

risen from the dead A proof that Herod did not hold the Sadducean doctrine, that there is no resurrection.

and therefore In consequence of having risen from the dead he is thought to be possessed of larger powers. Alford remarks that this incidentally confirms St John's statement (ch. Matthew 10:41), that John wrought no miracle while living.

mighty works do shew forth themselves Literally, works of power are active in him.