New Defender's Study Bible Notes
18:25 This man was instructed. Apollos is said to have been “mighty in the Scriptures,” “fervent in the Spirit” (undoubtedly referring to the indwelling Holy Spirit), “instructed in the way of the Lord” (directly or indirectly instructed by John the Baptist), and teaching “diligently the things of the Lord.” Even though he knew “only the baptism of John,” he had surely believed all that John had taught, and—like the disciples of John who became the first disciples of Christ—was “prepared for the Lord (Luke 1:17), needing only the up-to-date instruction of Priscilla and Aquila to know “the way of God more perfectly” (Acts 18:26) and then to become a mighty preacher like Paul. There is no indication that he—unlike the disciples of John at Ephesus (see notes on Acts 19:1-7)—had to be rebaptized, for he had already accepted by faith the coming one as preached by John. He then went on to Corinth, in Achaia, and continued with great success the work begun there by Paul (Acts 18:27-28; see also I Corinthians 3:5-6).