Bede the Venerable — as excerpted in the Catena Aurea on Mark 9:14-29

“(ubi sup.) But him, whom the unholy spirit made like unto death, the holy Saviour saved by the touch of His holy hand; wherefore it goes on, But Jesus took him by the hand, and lifted him up, and he arose. Thus as the Lord had shewn Himself to be very God by the power of healing, so He shewed that He had the very nature of our flesh, by the manner of His human touch. The Manichæani indeed madly denies that He was truly clothed in flesh; He Himself, however, by raising, cleansing, enlightening so many afflicted persons by His touch, condemned his heresy before its birth. It goes on: And when he was come into the house, his disciples asked him privately, Why could not we cast him out?”