23 And there was in their synagogue a man with an unclean spirit, and he cried out, 24 saying, 'Away! what—to us and to thee, Jesus the Nazarene? thou didst come to destroy us; I have known thee who thou art—the Holy One of God.' 25 And Jesus rebuked him, saying, 'Be silenced, and come forth out of him,' 26 and the unclean spirit having torn him, and having cried with a great voice, came forth out of him, 27 and they were all amazed, so as to reason among themselves, saying, 'What is this? what new teaching 'is' this? that with authority also the unclean spirits he commandeth, and they obey him!'
Matthew Henry's Commentary on Mark 1:23-27
Commentary on Mark 1:23-28
(Read Mark 1:23-28)
The devil is an unclean spirit, because he has lost all the purity of his nature, because he acts in direct opposition to the Holy Spirit of God, and by his suggestions defiles the spirits of men. There are many in our assemblies who quietly attend under merely formal teachers; but if the Lord come with faithful ministers and holy doctrine, and by his convincing Spirit, they are ready to say, like this man, What have we to do with thee, Jesus of Nazareth! No disorder could enable a man to know Jesus to be the Holy One of God. He desires to have nothing to do with Jesus, for he despairs of being saved by him, and dreads being destroyed by him. See whose language those speak, that say to the Almighty, Depart from us. This unclean spirit hated and dreaded Christ, because he knew him to be a Holy One; for the carnal mind is enmity against God, especially against his holiness. When Christ by his grace delivers souls out of the hands of Satan, it is not without tumult in the soul; for that spiteful enemy will disquiet those whom he cannot destroy. This put all who saw it upon considering, What is this new doctrine? A work as great often is wrought now, yet men treat it with contempt and neglect. If this were not so, the conversion of a notorious wicked man to a sober, righteous, and godly life, by the preaching of a crucified Saviour, would cause many to ask, What doctrine is this?