But Paul, being grieved - Being molested, troubled, offended. Paul was grieved, probably:

(1) Because her presence was troublesome to him;

(2) Because it might be said that he was in alliance with her, and that his pretensions were just like hers;

(3) Because what she did was for the sake of gain, and was a base imposition;

(4) Because her state was one of bondage and delusion, and it was proper to free her from this demoniacal possession; and,

(5) Because the system under which she was acting was a part of a scheme of delusion and imposture, which had spread over a large portion of the pagan world, and which was then holding it in bondage.

Throughout the Roman empire the inspiration of the priestesses of Apollo was believed in, and temples were everywhere reared to perpetuate and celebrate the delusion. Against this extensive system of imposture and fraud Christianity must oppose itself; and this was a favorable instance to expose the delusion, and to show the power of the Christian religion over all the arts and powers of imposture. The mere fact that in a very few instances - of which this was one - they spoke the truth, did not make it improper for Paul to interpose. That fact would only tend to perpetuate the delusion, and to make his interposition more proper and necessary. The expulsion of the evil spirit would also afford a signal proof of the fact that the apostles were really from God a far better proof than her noisy and troublesome proclamation of it would furnish.

In the name of Jesus Christ - Or, by the authority of Jesus Christ. See the notes on Acts 3:6.

Paul, being grieved - Probably for the reasons assigned above.

Turned - to the spirit - Not to the woman; she was only the organ by which the spirit acted.

I command thee, in the name of Jesus - Jesus is the Savior; Satan is Abaddon and Apollyon, the destroyer. The sovereign Savior says to the destroyer, Come out of her; and he came out in the same hour. Every circumstance of this case proves it to have been a real possession. We have already had several opportunities of remarking the great accuracy of St. Luke in his accounts of demoniacs: his education as a physician gave him advantages to detect imposture of this kind where it subsisted; but he sees none in this case. He speaks of the spirit and the damsel as distinct persons. The damsel had a spirit of divination. Paul turned to the spirit, and said, I command Thee to come out of Her; and he came out in the same hour. Had not St. Luke considered this as a real case of diabolic possession, he has made use of the most improper language he could choose; language and forms of speech calculated to deceive all his readers, and cause them to believe a lie. But it is impossible that the holy apostle could do so, because he was a good man; and it is not likely he could be deceived by a parcel of charlatans, because he was a wise man; and it would be absurd to suppose that, while he was under the influence of the Holy Spirit, he could be imposed on by the cunning of even the devil himself.

And this she did many days,.... As the apostle and his company passed to and from the oratory, being for that time at Lydia's house; she followed them, and repeated the above words. This she was suffered to do, time after time; not that the apostle and his friends wanted such a testimony, or that it was of any use to them; but that the expulsion of the evil spirit might be more manliest, and more taken notice of:

but Paul being grieved; at the unhappy condition the maid was in, being possessed with such a spirit: and that the people were so imposed upon and deluded by it; and that it should be thought that there was any combination and agreement between that and him:

turned; himself to her, who was behind him, she following him, as is said in the preceding verse; this is left out in the Syriac version:

and said to the spirit; or to that spirit, as the same version renders it; to the spirit of Python, or Apollo, or of divination, that was in the maid; the Ethiopic version reads, "and he said", "in", or "by the Holy Spirit"; being under a more than ordinary influence and impulse of his; but not the spirit by which he spake, but the spirit to which he spake, is here meant:

I command thee in the name of Jesus Christ to come out of her, and he came out the same hour; this is an instance of that power which Christ gave to his apostles to cast out devils in his name,

Grieved (διαπονηθεὶς)

Not strong enough. Rather, worn out. Both grieved at the sad condition of the woman, and thoroughly annoyed and indignant at the continued demonstrations of the evil spirit which possessed her. Compare Acts 4:2.

And this did she {g} many days. But Paul, being grieved, turned and said to the spirit, I command thee in the name of Jesus Christ to come out of her. And he came out the same hour.

(g) Paul made no haste to do this miracle, for he did all things only as he was led by the Spirit.

16:18 I command thee in the name of Jesus Christ to come out of her. In my name, said the risen Lord, shall they cast out devils (Mr 16:17).

18. Paul being grieved-for the poor victim; grieved to see such power possessed by the enemy of man's salvation, and grieved to observe the malignant design with which this high testimony was borne to Christ.

16:16-24 Satan, though the father of lies, will declare the most important truths, when he can thereby serve his purposes. But much mischief is done to the real servants of Christ, by unholy and false preachers of the gospel, who are confounded with them by careless observers. Those who do good by drawing men from sin, may expect to be reviled as troublers of the city. While they teach men to fear God, to believe in Christ, to forsake sin, and to live godly lives, they will be accused of teaching bad customs.