Apol’los (given by Apollo), a Jew from Alexandria, eloquent (which may also mean learned) and mighty in the Scriptures; one instructed in the way of the Lord, according to the imperfect view of the disciples of John the Baptist, Acts 18:24, but on his coming to Ephesus during a temporary absence of St. Paul, a.d. 54, more perfectly taught by Quila and Priscilla. After this he became a preacher of the gospel, first in Achaia and then in Corinth. Acts 18:27; 19:1. When the apostle wrote his First Epistle to the Corinthians, Apollos was with or near him, 1 Cor. 16:12; probably at Ephesus in a.d. 57. He is mentioned but once more in the New Testament, in Titus 3:13. After this nothing is known of him. Tradition makes him bishop of Cæsarea.