For Jesus had commanded the unclean spirit to come out of the man. Many times it had seized him, and though he was bound with chains and shackles, he had broken the chains and been driven by the demon into solitary places.
We have here two illustrious proofs of the power of our Lord Jesus which we had before - his power over the winds, and his power over the devils. See Mk. 4 and 5. I. His power over the winds, those powers of the air that are so much a terror to men, especially upon sea, and occasion the death of such multitudes. Observe, 1.
Commenting on Luke 8:22-39
And Jesus asked him, saying, what is thy name?.... This question was put, not out of ignorance in Christ, but for the sake of those that were with him; and partly, that the miserable condition of this man might be the more known; and partly, that his own power might be the more manifest in the dispossession: and he said, legion, because many devils were...
(For he had commanded the unclean spirit to come out of the man. For oftentimes it had caught him: and he was kept bound with chains and in fetters; and he brake the bands, and was driven of the devil into the wilderness.) (k) By force and violence, as a horse when he is spurred.