And he reasoned ... - See the notes on Acts 17:2.

He reasoned in the synagogue every Sabbath - Discoursed at large concerning Jesus as the Messiah, proving this point from their own Scriptures, collated with the facts of our Lord's life, etc.

And persuaded the Jews and the Greeks - Many, both Jews and proselytes, were convinced of the truth of his doctrine. Among his converts was Epenetus, the first fruit of his labor in Achaia, Romans 16:5; and the family of Stephanas was the next; and then Crispus and Caius, or Gaius; all of whom the apostle himself baptized, 1 Corinthians 1:14-16. See on Acts 18:8 (note).

And he reasoned in the synagogue every sabbath,.... In Corinth there was a synagogue of the Jews, in which they met together for worship on the seventh day of the week, which was their sabbath; and hither Paul went, and took the opportunity of reasoning with them out of the Scriptures, concerning Christ, his person, and offices, his incarnation, obedience, sufferings, and death, and about redemption and salvation by him: we may observe the diligence, industry, and indefatigableness of the apostle; on the sabbath day he went to the synagogue, and preached Christ to those who there attended; and on the weekdays he laboured with his own hands. Beza's most ancient copy, and the Vulgate Latin version add here, "interposing the name of the Lord Jesus"; frequently making mention of his name, or calling upon it, and doing miracles in it.

And persuaded the Jews and the Greeks; this was the effect of his reasoning, and the success that attended it; some, both of the Jews, who were so by birth, as well as religion, and of the Greeks, or Gentiles, who were Jewish proselytes, and attended synagogue worship, were convinced by his arguments, and were induced to believe the truth of his doctrine, and to embrace it; or at least he endeavoured to persuade them that they were lost sinners, and that there was salvation for them in Christ, and in him only.

{2} And he reasoned in the synagogue every sabbath, and {b} persuaded the Jews and the Greeks.

(2) The truth ought always to be freely uttered, yet nonetheless the doctrine may be moderated in accordance with the hearers, so that they are most profited.

(b) Exhorted so that he persuaded, and that is what the word signifies.

18:4 He reasoned in the synagogue every sabbath. While toiling six days in the week in this strange city, on the Sabbath, according to his custom, he preached.

4. the Greeks-that is, Gentile proselytes; for to the heathen, as usual, he only turned when rejected by the Jews (Ac 18:6).

18:1-6 Though Paul was entitled to support from the churches he planted, and from the people to whom he preached, yet he worked at his calling. An honest trade, by which a man may get his bread, is not to be looked upon with contempt by any. It was the custom of the Jews to bring up their children to some trade, though they gave them learning or estates. Paul was careful to prevent prejudices, even the most unreasonable. The love of Christ is the best bond of the saints; and the communings of the saints with each other, sweeten labour, contempt, and even persecution. Most of the Jews persisted in contradicting the gospel of Christ, and blasphemed. They would not believe themselves, and did all they could to keep others from believing. Paul hereupon left them. He did not give over his work; for though Israel be not gathered, Christ and his gospel shall be glorious. The Jews could not complain, for they had the first offer. When some oppose the gospel, we must turn to others. Grief that many persist in unbelief should not prevent gratitude for the conversion of some to Christ.