Apollos was one of the great preachers of the early church. Luke introduces him in Acts 18:24-28: "a certain Jew named Apollos, born at Alexandria, an eloquent man and mighty in the Scriptures, came to Ephesus. This man had been instructed in the way of the Lord; and being fervent in spirit, he spoke and taught accurately the things of the Lord, though he knew only the baptism of John." His preaching was powerful but incomplete — he only knew John's baptism, not Christian baptism or the fuller gospel of Pentecost. When Priscilla and Aquila heard him in the synagogue, "they took him aside and explained to him the way of God more accurately" (Acts 18:26). Apollos, though already a formidable teacher, humbly received correction from a tentmaker and his wife — a beautiful picture of theological humility. Apollos then went to Achaia (Corinth) where he "greatly helped those who had believed through grace; for he vigorously refuted the Jews publicly, showing from the Scriptures that Jesus is the Christ" (Acts 18:27-28). Paul speaks of him repeatedly in 1 Corinthians as his fellow worker: "I planted, Apollos watered, but God gave the increase" (1 Corinthians 3:6). Some early Christians preferred Apollos to Paul, but Paul refused to let this become divisive: both were servants of the same Lord. Apollos stands as the model of the learned preacher: eloquent, biblical, correctable, effective.