Acts 11:25-26

Then departed Barnabas Namely, after some abode at Antioch, perceiving, probably, that he wanted an assistant in his labours; to Tarsus, to seek Saul Whose departure thither was mentioned, chap. Acts 9:30. And finding him there According to his expectation, he gave him, it seems, such an account of the state of things at Antioch, and such a view of the extensive usefulness which appeared to present itself there, that he prevailed with him to accompany him at his return to that populous and celebrated city. Probably he judged, that since he was by country a Greek, though by descent a Hebrew of the Hebrews, he would be peculiarly fit to assist him in his great work, especially considering, on the one hand, his accomplishments as a scholar, and, on the other, his extraordinary conversion and eminent piety and zeal. And, continuing there a whole year, they taught much people Instructed them in the doctrines, privileges, and duties of Christianity. And the disciples were called Christians first at Antioch A title that was really an honour to them, and by which, from this time, they were generally denominated, being before termed Nazarenes and Galileans.