(17) Fear fell on them all, and the name of the Lord Jesus was magnified.--The fact thus narrated had shown that the sacred Name stood on quite a different level from that of the other names which exorcists had employed. It was a perilous thing for men to use it rashly, without inward faith in all that the Name implied. Men thought more of it than they had done before, because they saw the punishment that fell on those who had profaned it.

Verse 17. - Became for was, A.V.; both Jews and Greeks for the Jews and Greeks also, A.V.; that dwelt for dwelling, A.V.; upon for on, A.V. Fear fell upon them. Comp. Acts 5:11-14, where the same effects are ascribed to the death of Ananias and Sapphire and the signs and wonders which were wrought by the apostles at that time. This fear produced by the putting forth of God's power paralyzed for a time the enemies of the gospel, and enabled believers, as it were, to take possession of their new heritage, just as the miracles at the Red Sea and the destruction of Sihon and Og paralyzed the courage of the Canaanites and enabled the Israelites to take possession of their land (Joshua 2:9-11). With respect to the incident which caused this fear, it might at first seem inconsistent with our Lord's saying to the apostles (Luke 9:49, 50). But the cases were very different. He who cast out devils in the name of Jesus, in the Gospel, does not seem to have had any hostility to the faith, for our Lord speaks of him as one who "is not against us." But these sons of Sceva were among the unbelieving Jews who were "hardened and disobedient;" and if their exorcisms had been permitted to succeed, they would have had power to withstand Paul, as Jannes and Jambres withstood Moses, and the very purpose for which miraculous power was given to St. Paul would have been frustrated. There- fore they were discomfited, and the subtle design of Satan to destroy, while seeming to magnify, the Name of Jesus was signally defeated. Comp. the somewhat similar incident at Philippi (Acts 16:16-18). Justin Martyr, in his 'Diologue with Trypho,' quoted by Alford on Matthew 12:27, speaks of the Jews as exorcising, sometimes in the name of kings (referring, doubtless, to Solomon), sometimes of just men, or of prophets, or of patriarchs. So these men took up the name of Jesus.

19:13-20 It was common, especially among the Jews, for persons to profess or to try to cast out evil spirits. If we resist the devil by faith in Christ, he will flee from us; but if we think to resist him by the using of Christ's name, or his works, as a spell or charm, Satan will prevail against us. Where there is true sorrow for sin, there will be free confession of sin to God in every prayer and to man whom we have offended, when the case requires it. Surely if the word of God prevailed among us, many lewd, infidel, and wicked books would be burned by their possessors. Will not these Ephesian converts rise up in judgement against professors, who traffic in such works for the sake of gain, or allow themselves to possess them? If we desire to be in earnest in the great work of salvation, every pursuit and enjoyment must be given up which hinders the effect of the gospel upon the mind, or loosens its hold upon the heart.And this was known to all the Jews,.... These men being Jews: and Greeks also dwelling at Ephesus: for though it was done in a private house, yet there might be many spectators and witnesses, both Jews and Greeks, who spread this fact about the city, and who, were to be depended upon:

and fear fell on them all; on the enemies of Christ and his Gospel, so that others were deterred from making such an attempt for the future:

and the name of the Lord Jesus was magnified; which had such power over evil spirits, and whose power they themselves acknowledged: this was done by them that believed in Christ, who thought and spake the more highly of him; and who more strongly believed in him, and so magnified him, and gave more glory to him; Christ is great in himself, and he is magnified and made great, when he is declared to be so, and is treated as such.