The name of the Lord Jesus was magnified - Acquired increasing honor. The transaction showed that the miracles performed in the name of the Lord Jesus by Paul were real, and were performed in attestation of the truth of the doctrine which he taught. Impostors could not work such miracles; and they who pretended to be able to do it only exposed themselves to the rage of evil spirits. It was thus shown that there was a real, vital difference between Paul and these impostors, and their failure only served to extend his reputation and the power of the gospel.

The name of the Lord Jesus was magnified - They saw that there was a sovereign power in the name of Jesus, which could not be imitated by these lying exorcists: they therefore reverenced this name, and despised those pretenders.

Exorcisms or adjurations of evil spirits were very frequent in the primitive Church: the name of Jesus was that alone which was used. The primitive fathers speak strong and decisive words concerning the power of this name; and how demons were tormented and expelled by it, not only from individuals, but from the temples themselves. Exorcists formed a distinct class an the Church; hence we read of presbyters, deacons, exorcists, lectors, and door-keepers. The adjuration was commonly used over the catechumens, before they were admitted to baptism. Gregory of Nazianzen, and Cyril of Jerusalem speak much of this rite. See my Succession of Sacred Literature, under Cyril, and Gregory Nazianzen; and see Suicer, under εξορκισμος.

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.

Was known (ἐγένετο γνωστὸν)

More correctly, became known.

And this was known to all the Jews and Greeks also dwelling at Ephesus; and fear fell on them all, and the name of the Lord Jesus was magnified.

19:17 This was known to all the Jews and Greeks. Ephesus was a great seat of magical arts. This event would have a powerful effect on those who dealt in charms, incantations, and magic, and of course would exalt the name of Christ.

19:17 And the name of the Lord Jesus was magnified - So that even the malice of the devil wrought for the furtherance of the Gospel.

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.