Apollos, whose full name would have been Apollonius, may have arrived in Ephesus after Paul had departed for Jerusalem. That is the impression Luke gave. In any case he was from Alexandria, the capital of Egypt. Furthermore he was a Christian Hellenistic Jew who had a thorough understanding of the Old Testament, a gift for communicating and defending the faith, and enthusiasm (cf. Romans 12:11). "The way of the Lord" is another description of the Christian faith (i.e, the gospel; cf. Acts 9:2; Acts 16:17; Acts 18:26; Acts 19:9; Acts 19:23; Acts 22:4; Acts 24:14; Acts 24:22). Apollos was proclaiming what he knew of the gospel in the Ephesian synagogue, but he did not know about Christian baptism. He only knew about John the Baptist"s baptism that expressed repentance for sins (cf. Acts 19:3). [source][source][source]