Acts 18:21, 24

and said farewell to them, adding, “I will come back to you, if it is God’s will, after I go to Jerusalem to observe the feast.” Then he set sail from Ephesus for Caesarea.

A Jewish man by the name of Apollos arrived in Ephesus. He was a native of Alexandria and was recognized as an educated and cultured man. He was powerful in the Scriptures