18:3 Because he was of the same occupation, he abode with them. This is the first mention of the handicraft by which so often during his toilsome life Paul earned his daily bread. Every Jewish boy was taught a trade, and Paul no doubt learned his in Tarsus. Compare Ac 20:34 1Th 2:9 2Th 3:8 1Co 4:12 2Co 11:9.
18:3 They were tent makers by trade - For it was a rule among the Jews (and why is it not among the Christians?) to bring up all their children to some trade, were they ever so rich or noble.
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.