Acts 8:13

Simon himself believed. That is, pretended to believe, that he might obtain the power of speaking tongues, and working miracles, which was frequently imparted to the faithful at baptism. (Menochius) — He was filled with pride and presumption, says St. Augustine. He wished to imitate the prodigies of the apostles, but loved not their justice, nor the truth they preached. He entered into the Church, and desired baptism, not to obtain the grace of justification, but to have an occasion of extolling himself. He wished to walk in wonders above himself. (In Psalm cxxx.)

(2.) Here is another thing yet more wonderful, that Simon Magus himself became a convert to the faith of Christ, in show and profession, for a time. Is Saul also among the prophets? Yes (v. 13), Simon himself believed also. He was convinced that Philip preached a true doctrine, because he saw it confirmed by real miracles, of which he was the better able to judge because he was conscious to himself of the trick of his own pretended ones. [1.] The present conviction went so far that he was baptized, was admitted, as other believers were, into the church by baptism; and we have no reason to think that Philip did amiss in baptizing him, no, nor in baptizing him quickly. Though he had been a very wicked man, a sorcerer, a pretender to divine honours, yet, upon his solemn profession of repentance for his sin and faith in Jesus Christ, he was baptized. For, as great wickedness before conversion keeps not true penitents from the benefits of God's grace, so neither should it keep professing ones from church-fellowship. Prodigals, when they return, must be joyfully welcomed home, though we cannot be sure but that they will play the prodigal again. Nay, though he was now but a hypocrite, and really in the gall of bitterness and bond of iniquity all this while, and would soon have been found to be so if he had been tried awhile, yet Philip baptized him; for it is God's prerogative to know the heart. The church and its ministers must go by a judgment of charity, as far as there is room for it. It is a maxim in the law, Donec contrarium patet, semper præsumitur meliori parti—We must hope the best as long as we can. And it is a maxim in the discipline of the church, De secretis non judicat ecclesia—The secrets of the heart God only judges. [2.] The present conviction lasted so long that he continued with Philip. Though afterwards he apostatized from Christianity, yet not quickly. He courted Philip's acquaintance, and now he that had given out himself to be some great one is content to sit at the feet of a preacher of the gospel. Even bad men, very bad, may sometimes be in a good frame, very good; and those whose hearts still go after their covetousness may possibly not only come before God as his people come, but continue with them. [3.] The present conviction was wrought and kept up by the miracles; he wondered to see himself so far outdone in signs and miracles. Many wonder at the proofs of divine truths who never experience the power of them.

Verses 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.