When I did the recent miniseries, I forgot that the most powerful commentary I found on 1 Corinthians 6:9-20, was on verse 18, and not by MacArthur, but by Albert Barnes. Before pasting in Barnes’ comments, I provided the definition of the Greek word, ‘porneia’ which was translated ‘fornication’ by the KJV – look at the featured image to quickly get that definition.