Acts 18:12

And when Gallio was the deputy of Achaia. — “Deputy” stands, as before (see Note on Acts 13:7), for “proconsul.” Here, also, St. Luke shows his characteristic accuracy in the use of official titles. Achaia, which included the whole of Greece south of the province of Macedonia, had been an imperial province under Tiberius (Tacitus, Ann. i. 76), and had been governed by a prætor, but had been recently, in the same year as the expulsion of the Jews from Rome, restored to the senate by Claudius, as no longer needing direct military control (Suetonius, Claud. c. 25). Gallio, or to give his full name, M. Annæus Novatus, who had taken the agnomen of Gallio on his adoption by the rhetorician of that name, was the brother of L. Annæus Seneca, the tutor of Nero. The philosopher dedicated to him two treatises on Anger and the Blessed Life; and the kindliness of his nature made him a general favourite. He was everybody’s “dulcis Gallio,” was praised by his brother for his disinterestedness and calmness of temper, as one “who was loved much, even by those who had but little capacity for loving” (Seneca, Ep. 104). On the whole, therefore, we may see in him a very favourable example of what philosophic culture was able to do for a Roman statesman. On the probable connection of the writer of the Acts with his family, see Introduction to the Gospel of St. Luke.

Made insurrection... against Paul. Better, perhaps, rose up against, or rushed upon, our word “insurrection” having acquired the special meaning of a revolt of subjects against rulers.

And brought him to the judgment seat. — The habit of the Roman governors of provinces was commonly to hold their court in the agora, or marketplace on certain fixed days (see Note on Acts 19:38), so that any one might appeal to have his grievance heard. Gallio was now so sitting, and the Jews, having probably preconcerted their plans, took advantage of the opportunity.