John Gill Commentary Acts 19:18

"Many also of them that had believed came, confessing, and declaring their deeds." — Acts 19:18 (ASV)

And many that believed In Jesus Christ, whose name was spoken of with great respect, and which spread fear in every person:

came; to the apostle:

and confessed; their sins; and acknowledged what a wicked life they had led:

and showed their deeds; their former evil deeds, which they had been guilty of; one copy reads, "their sins"; see (Matthew 3:6).