What is the meaning of Acts 18:18-23?

18 And Paul after this tarried there yet a good while, and then took his leave of the brethren, and sailed thence into Syria, and with him Priscilla and Aquila; having shorn his head in Cenchrea: for he had a vow. 19 And he came to Ephesus, and left them there: but he himself entered into the synagogue, and reasoned with the Jews. 20 When they desired him to tarry longer time with them, he consented not; 21 But bade them farewell, saying, I must by all means keep this feast that cometh in Jerusalem: but I will return again unto you, if God will. And he sailed from Ephesus. 22 And when he had landed at Caesarea, and gone up, and saluted the church, he went down to Antioch. 23 And after he had spent some time there, he departed, and went over all the country of Galatia and Phrygia in order, strengthening all the disciples. (Acts 18:18-23 KJV)

William Burkitt’s Commentary

A further account is here given of the laborious travels of the great apostle St. Paul; namely, from Corinth to Ephesus, from Ephesus to Cesarea, from Cesarea to Antioch, &c.

Where observe, 1. That St. Paul having continued a year and a half at Corinth, and planted a church there, which yet soon after sadly degenerated; he determines now to sail to Ephesus; and accordingly, at Cenchrea, a haven near to that city, he shaved his head, for he had a vow; that is, the vow of a Nazarite, which he (that is, Aquila, say some; St. Paul, say others) had before taken upon him for a time, whereby he was obliged to abstain from wine, and shaving his head, and touching of the dead.

But having now accomplished his vow, he shore his head, and returned to the common way of living; where the wisdom and moderation of this great apostle, in complying with indifferent things, is to be noted and imitated: To the Jews he became a Jew, that he might gain the Jews.

He willingly complied with their weakness, to show that he was no contemner of their law; for which reason he caused Timothy to be circumcised, and purified himself in the temple at Jerusalem: and behold the success of this his compliance; for, by gratifying the Jews in this condescension to the prescription of the law, he brought over very many of them to the faith of Christ.

Let not any suspect this for sinful compliance with the Jews, in observing a ceremony which the gospel had abolished, nor censure it for a low and mean stoop in so great a man to the humour of the people; for though the ceremonial rites died with Christ, yet they were a long time in burying, and the Jews were indulged in the observation of them till they came to a clearer sight of their Christian liberty; accordingly the apostle yielded to them for the present in indifferent things, without dissimulation or blame.

Observe, 2. The apostle having now come to Ephesus, taught in the synagogue of the Jews and reasoned with them.

Where we may note, both how close the apostle kept to his commission, in first preaching the word of life to the Jews, and also the fervent love which he bares to his own countrymen, whom though he had suffered all manner of indignities from, yet he gives them precept upon precept, line upon line; and, with unwearied diligence, dispenses the word of life and salvation to them.

Observe, 3. Our apostle stays not long at Ephesus, but hastens to Jerusalem to keep the feast there, namely, the feast of the Passover; not that he took himself obliged to observe the feasts or any of the antiquated ceremonies: but because of the vast concourse which he knew would be at Jerusalem at the time of the feast, from all quarters, and which would give him an opportunity to make Christ known to a great multitude. The ministers of the gospel, without the imputation of vain glory, or seeking popular applause, may warrantably desire, and occasionally lay hold upon, an opportunity of dispensing the word to numerous auditory, in the hope that casting the net among many, it may enclose some.

Observe, lastly, The incessant care, indefatigable diligence, and unwearied pains, of this great apostle, in travelling from place to place, and at such great distances, to preach the everlasting gospel to lost sinners. From Ephesus, he sails to Cesarea, from Cesarea to Jerusalem, from Jerusalem to Antioch, and from Antioch to Galatia and Phrygia. See how the care of all the churches was upon him, and how he laboured more abundantly than they all.

Lord, what a pattern is here of ministerial diligence and faithfulness! What pains did St. Paul take! What hazards did he run, in planting and propagating the gospel of Christ! In labours more abundant, in sufferings above measure! Well, might he say, I am able to do all things through Christ that strengthens me. And blessed be God, the same power that assisted him, stands ready to succour us; and if ever he calls us to extraordinary service, he will come in with more than extraordinary strength.