Acts 18:23-27

And after spending some time there, he left and passed successively through the Galatian region and Phrygia, strengthening all the disciples.

Now a Jew named Apollos, an Alexandrian by birth, an eloquent man, came to Ephesus; and he was proficient in the Scriptures.

This man had been instructed in the way of the Lord; and being fervent in spirit, he was accurately speaking and teaching things about Jesus, being acquainted only with the baptism of John;

and he began speaking boldly in the synagogue. But when Priscilla and Aquila heard him, they took him aside and explained the way of God more accurately to him.

And when he wanted to go across to Achaia, the brothers encouraged him and wrote to the disciples to welcome him; and when he had arrived, he greatly helped those who had believed through grace,