Then Paul went into the synagogue and spoke boldly there for three months, arguing persuasively about the kingdom of God.
8. Going into the synagogue. By this we gather that Paul began with the company of the godly, who had already given their names to Christ. Secondly, that he came into the synagogue, that he might gather together into one body of the Church the rest of the Jews who knew not Christ as yet, or at least who had not as yet received him.
Paul is here very busy at Ephesus to do good. I. He begins, as usual, in the Jews' synagogue, and makes the first offer of the gospel to them, that he might gather in the lost sheep of the house of Israel, who were now scattered upon the mountains. Observe, 1. Where he preached to them: in their synagogue (Act 19:8), as Christ used to do.
Commenting on Acts 19:8-12
But when divers were hardened and believed not,.... For though some were affected with and convinced by the arguments the apostle used, others were but the more hardened and remained incredulous: for the Gospel, while it is the savour of life unto life to some, it is the savour of death unto death, to others; as the sun melts the wax, and hardens the clay...