5 And Philip having gone down to a city of Samaria, was preaching to them the Christ, 6 the multitudes also were giving heed to the things spoken by Philip, with one accord, in their hearing and seeing the signs that he was doing, 7 for unclean spirits came forth from many who were possessed, crying with a loud voice, and many who have been paralytic and lame were healed, 8 and there was great joy in that city. 9 And a certain man, by name Simon, was before in the city using magic, and amazing the nation of Samaria, saying himself to be a certain great one, 10 to whom they were all giving heed, from small unto great, saying, 'This one is the great power of God;' 11 and they were giving heed to him, because of his having for a long time amazed them with deeds of magic. 12 And when they believed Philip, proclaiming good news, the things concerning the reign of God and the name of Jesus Christ, they were baptized both men and women; 13 and Simon also himself did believe, and, having been baptized, he was continuing with Philip, beholding also signs and mighty acts being done, he was amazed.
Matthew Henry's Commentary on Acts 8:5-13
Commentary on Acts 8:5-13
(Read Acts 8:5-13)
As far as the gospel prevails, evil spirits are dislodged, particularly unclean spirits. All inclinations to the lusts of the flesh which war against the soul are such. Distempers are here named, the most difficult to be cured by the course of nature, and most expressive of the disease of sin. Pride, ambition, and desire after grandeur have always caused abundance of mischief, both to the world and to the church. The people said of Simon, This man is the great power of God. See how ignorant and thoughtless people mistake. But how strong is the power of Divine grace, by which they were brought to Christ, who is Truth itself! The people not only gave heed to what Philip said, but were fully convinced that it was of God, and not of men, and gave up themselves to be directed thereby. Even bad men, and those whose hearts still go after covetousness, may come before God as his people come, and for a time continue with them. And many wonder at the proofs of Divine truths, who never experience their power. The gospel preached may have a common operation upon a soul, where it never produced inward holiness. All are not savingly converted who profess to believe the gospel.