John Calvin Commentary Acts 9:30

"And when the brethren knew it, they brought him down to Caesarea, and sent him forth to Tarsus." — Acts 9:30 (ASV)

When he went to Tarsus, he undoubtedly did so with this purpose: to carry the doctrine of the gospel there, because he hoped that he would have some favor and authority in his own country, where he was famous; yet he was brought there by the brothers, so that they might deliver him from those lying in wait.