We have four men - There are with us four men. It is evident that James and the elders meant to say that these men were connected with them in the Christian church; and the fact shows that the Christians at Jerusalem did not disregard the institutions of Moses, and had not been so far enlightened in the doctrines of Christianity as to forsake yet the ceremonial rites of the Jews.

Which have a vow on them - Which have made a vow. See the notes on Acts 18:18. From the mention of shaving the head (in Acts 21:24), it is evident that the vow which they had taken was that of the Nazarite; and that as the time of their vow was about expiring, they were about to be shaven, in accordance with the custom usual on such occasions. See the notes on Acts 18:18. These persons Paul could join, and thus show decisively that he did not intend to undervalue or disparage the laws of Moses when those laws were understood as mere ceremonial observances.

We have four men which have a vow - From the shaving of the head, mentioned immediately after, it is evident that the four men in question were under the vow of Nazariteship; and that the days of their vow were nearly at an end, as they were about to shave their heads; for, during the time of the Nazariteship, the hair was permitted to grow, and only shaven off at the termination of the vow. Among the Jews, it was common to make vows to God on extraordinary occasions; and that of the Nazarite appears to have been one of the most common; and it was permitted by their law for any person to perform this vow by proxy. See the law produced in my note on Numbers 6:21 (note). "It was also customary for the richer sort to bestow their charity on the poorer sort for this purpose; for Josephus, Ant. lib. xix. cap. 6, sec. 1, observes that Agrippa, on his being advanced from a prison to a throne, by the Emperor Claudius, came to Jerusalem; and there, among other instances of his religious thankfulness shown in the temple, Ναζαραιων ξυρασθαι διεταξε μαλα συχνους, he ordered very many Nazarites to be shaven, he furnishing them with money for the expenses of that, and of the sacrifices necessarily attending it." See Bp. Pearce.

Do therefore this that we say to thee,.... This is said not as commanding, but as advising; and not to what was a duty, and necessary to be done as such, but as a point of prudence:

we have four men which have a vow on them; that is, there were four men who were of the church at Jerusalem, believers in Christ, but weak ones, who were zealous of the law, and bigots to it, and who had voluntarily vowed a vow of the Nazarites; see Numbers 6:2.

A vow

The Nazarite vow. See Numbers 6:1-21.

Do therefore this that we say to thee: We have four men which have a vow on them;

21:23 Do therefore this. This counsel is given that the multitude of Jewish Christians may see that Paul still kept the Jewish customs. As he did keep them, not as a matter of obligation, but as a Jew, in order that he might reach his own race, it involved no sacrifice of principles.

We have four men which have a vow. These were Jewish Christians. The vow was a Nazaritish vow. For a description, see Nu 6:14-18. This vow involved living an ascetic life for a certain period, sometimes thirty days, and was terminated by shaving the head, burning the hair as an offering, and offering a sacrifice.

21:23 Therefore - To obviate their prejudice against thee: do this that we say to thee - Doubtless they meant this advice well: but could Paul follow it in godly sincerity? Was not the yielding so far to the judgment of others too great a deference to be paid to any mere men?

Margin vow

Probably according to Num 6:1-7. Cf. Col 2:14-17.

23. we have four men-Christian Jews, no doubt.

which have a vow-perhaps kept ready on purpose.

21:19-26 Paul ascribed all his success to God, and to God they gave the praise. God had honoured him more than any of the apostles, yet they did not envy him; but on the contrary, glorified the Lord. They could not do more to encourage Paul to go on cheerfully in his work. James and the elders of the church at Jerusalem, asked Paul to gratify the believing Jews, by some compliance with the ceremonial law. They thought it was prudent in him to conform thus far. It was great weakness to be so fond of the shadows, when the substance was come. The religion Paul preached, tended not to destroy the law, but to fulfil it. He preached Christ, the end of the law for righteousness, and repentance and faith, in which we are to make great use of the law. The weakness and evil of the human heart strongly appear, when we consider how many, even of the disciples of Christ, had not due regard to the most eminent minister that even lived. Not the excellence of his character, nor the success with which God blessed his labours, could gain their esteem and affection, seeing that he did not render the same respect as themselves to mere ceremonial observances. How watchful should we be against prejudices! The apostles were not free from blame in all they did; and it would be hard to defend Paul from the charge of giving way too much in this matter. It is vain to attempt to court the favour of zealots, or bigots to a party. This compliance of Paul did not answer, for the very thing by which he hoped to pacify the Jews, provoked them, and brought him into trouble. But the all-wise God overruled both their advice and Paul's compliance with it, to serve a better purpose than was intended. It was in vain to think of pleasing men who would be pleased with nothing but the rooting out of Christianity. Integrity and uprightness will be more likely to preserve us than insincere compliances. And it should warn us not to press men to doing what is contrary to their own judgment to oblige us.