1 Cor 11:23 For I have received of the Lord that which also I delivered unto you, That the Lord Jesus the same night in which he was betrayed took bread:
1 Cor 11:24 And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.
1 Cor 11:25 After the same manner also he took the cup, when he had supped, saying, This cup is the new testament in my blood: this do ye, as oft as ye drink it, in remembrance of me.
1 Cor 11:26 For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come.
1 Cor 11:27 Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord.
1 Cor 11:28 But let a man examine himself, and so let him eat of that bread, and drink of that cup.
1 Cor 11:29 For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.
1 Cor 11:30 For this cause many are weak and sickly among you, and many sleep.
1 Cor 11:31 For if we would judge ourselves, we should not be judged.
1 Cor 11:32 But when we are judged, we are chastened of the Lord, that we should not be condemned with the world.
1 Cor 11:33 Wherefore, my brethren, when ye come together to eat, tarry one for another.
1 Cor 11:34 And if any man hunger, let him eat at home; that ye come not together unto condemnation. And the rest will I set in order when I come.
Vs, 29-32 actually teaches what being unworthy is as many take communion without discerning the body of Christ. They take no thought, but just go through the motion. Same as only giving lip service to the Lord.