Acts 18:25-26

He spake and taught diligently the things of the Lord. That is, all that John understood. He believed that Jesus was the one coming after John, but he had learned only the gospel of the Lord's first commission (Mt 10:5,6). He was ignorant of the gospel of the second commission (Mt 28:19). Expounded unto him the way of God more perfectly. In my opinion Apollos' position was about that of the disciples of the Lord before the Great Commission was given. He had the gospel in part, but needed to be shown the way of the Lord "more perfectly". Aquila and Priscilla supplied this needed, and equipped him for gospel work.
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