Acts 18:24-27

24But a certain Jew, Apollos by name, an Alexandrian by race, an eloquent man, who was mighty in the scriptures, arrived at Ephesus.

25He was instructed in the way of the Lord, and being fervent in his spirit, he spoke and taught exactly the things concerning Jesus, knowing only the baptism of John.

26And he began to speak boldly in the synagogue. And Aquila and Priscilla, having heard him, took him to [them] and unfolded to him the way of 1God more exactly.

27And when he purposed to go into Achaia, the brethren wrote to the disciples engaging them to receive him, who, being come, contributed much to those who believed through grace.