instructed
Taught by word of mouth, or, hearsay, that is, not by revelation.
Compare (Galatians 1:11); (Galatians 1:12).
The New Testament Scriptures were not then written.
Related Commentaries of Acts 18:25
Acts 18:25
25 This man was instructed in the way of the Lord; and being fervent in the spirit, he spake and taught diligently the things of the Lord, knowing only the baptism of John.