Albert Barnes on Acts 19:14

One Sceva. Sceva is a Greek name, but nothing more is known of him.

Chief of the priests. αρχιερεως. This cannot mean that he was high priest among the Jews, as it is wholly improbable that his sons would be wandering exorcists. But it denotes that he was of the sacerdotal order. He was a Jewish chief priest; a priest of distinction, and that had held the office of a ruler. The word chief priest, in the New Testament, usually refers to men of the sacerdotal order, who were also rulers in the sanhedrim.