William MacDonald observed well, “Having discussed the origin and purpose of the Lord’s Supper, the apostle now turns to the consequences of participating in it wrongly. Whoever eats this bread or drinks this cup of the Lord in an unworthy manner will be guilty of the body and blood of the Lord. We are all unworthy to partake of this solemn Supper. In that sense, we are unworthy of any of the Lord’s mercy or kindness to us. But that is not the subject here.”