Chapter 18, verses 23-25
23
Having spent some time there, he departed, and went through the region of Galatia, and Phrygia, in order, establishing all the disciples.
24
Now a certain Jew named Apollos, an Alexandrian by race, an eloquent man, came to Ephesus. He was mighty in the Scriptures.
25
This man had been instructed in the way of the Lord