Acts 13:7

“Which was with the deputy of the country, etc. Or the Roman governor of the island; who very likely dwelt at Paphos, it being a principal, if not the principal city in the island, since Pliny mentions it first of all the cities in it, as before observed: and with this governor, or proconsul, as the word signifies, or rather praetor, Bar-jesus was: either he lived with him, making great pretensions to knowledge and learning, which the governor might be a favourer of, or in quality of a physician; the Ethiopic version adds, “and he was a servant of the governor”; or he might be only with him occasionally and accidentally, just at that time, though the former seems most likely: and the name of…”

“Which was with the deputy--properly, "the proconsul." This name was reserved for the governors of settled provinces, which were placed under the Roman Senate, and is never given in the New Testament to Pilate, Felix, or Festus, who were but procurators, or subordinate administrators of unsettled, imperial, military provinces. Now as Augustus reserved Cyprus for himself, its governor would in that case have been not a proconsul, but simply a procurator, had not the emperor afterwards restored it to the Senate, as a Roman historian [DIO CASSIUS] expressly states. In most striking confirmation of this minute accuracy of the sacred historian, coins have actually been found in the island, stamped…”

“Which was with the deputy - Or with the proconsul. The exact accuracy of Luke in this statement is worthy of special remark. In the time when Augustus united the world under his own power, the provinces were divided into two classes. Augustus found two names which were applied to public officers in existence, one of which was henceforward inseparably blended with the imperial dignity and with military command, and the other with the authority of the senate and its civil administration. The first of these names was “Praetor”; the other was “Consul.” What is to be accounted for here is that the latter is the name given by Luke to Sergius Paulus, as if he derived his authority from the senate.…”

“The proconsul - The Roman governor of Cyprus, a prudent man - And therefore not overswayed by Elymas, but desirous to inquire farther. Acts 13:9”

“13:7-8 The governor, Sergius Paulus, who was an intelligent man, was attracted to the teaching of Barnabas and Saul. But Elymas (the sorcerer’s Greco-Roman name) recognized a challenge to his power and strongly opposed the message of Barnabas and Saul.”

“the deputy: Act 13:12, Act 18:12, Act 19:38 a prudent: Act 17:11, Act 17:12; Pro 14:8, Pro 14:15, Pro 14:18, Pro 18:15; Hos 14:9; Th1 5:21 Acts 13:8”