In the book of 1 Corinthians Paul sets a number of disorders concerning the Lord’s Supper straight, presumably addressing the more significant disorders. But there were other disorders, as indicated by his closing words on the subject, where he said “the rest will I set in order when I come.”
So we do not come to the Lord’s Supper as a reward for having our act together. We come because it is one of God’s appointed instruments for putting us together. We do not eat food as a reward for having grown big and strong, but rather as a means for growing. The table is a table, not a trophy.
Why then must some be kept from the table? If the disorder is so great as to make edification impossible, then the Supper (because of the covenant curses attending it) does more harm to the offender than good.
But the things that Paul was intending to set in order when he came were not of this magnitude. These disorders took away from the Supper, but not so much that it would be better to abstain. Our table manners may be poor, but if we still take, and eat, and chew and swallow in honest faith, the Supper does its intended work. One of those works is the improvement of our manners. But for the one who pretends to be eating spiritually but is actively throwing the covenant food away, under the table, then there will be a reckoning. Against such impudence, you are solemnly warned.