Acts 18:21-25

but took leave of them and said, “I will return to you again if God wills,” and he set sail from Ephesus.

When he had landed in Caesarea, he went up to Jerusalem and greeted the church, and went down to Antioch. Third Missionary Journey

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;