And Jesus rebuked the demon; and he departed out of him: and the child was cured from that very hour.
All Commentaries on Matthew 17:18 Go To Matthew 17
Jerome
AD 420
Note that it was not the suffering victim but the demon who had to be directly rebuked. It may be that he indirectly rebuked the boy and the demon went out of him because it was owing to his sins that the demon had oppressed him. .