The context of the verses tells us what it means to eat in an unworthy manner. We sin if we don’t “discern the body†in verse 29. 1 Corinthians 11:20-30(ESV) 20 When you come together, it is not the Lord’s supper that you eat. 21 For in eating, each one goes ahead with his own meal. One goes hungry, another gets drunk. 22 What! Do you not have houses to eat and drink in? Or do you despise the church of God and humiliate those who have nothing? What shall I say to you? Shall I commend you in this? No, I will not. 23 For I received from the Lord what I also delivered to you, that the Lord Jesus on the night when he was betrayed took bread, 24 and when he had given thanks, he broke it, and said, “This is my body which is for you. Do this in remembrance of me.†25 In the same way also he took the cup, after supper, saying, “This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.†26 For as often as you eat this bread and drink the cup, you proclaim the Lord’s death until he comes. 27 Whoever, therefore, eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty concerning the body and blood of the Lord. 28 Let a person examine himself, then, and so eat of the bread and drink of the cup. 29 For anyone who eats and drinks without discerning the body eats and drinks judgment on himself. 30 That is why many of you are weak and ill, and some have died. Not discerning the body of Christ. Who/what is the body of Christ? The church. Paul mentions that people in Corinth were contentious and there were divisions among them. He also mentions people getting drunk in v. 21. Paul then says in verse 22, Do you not have houses in which to eat and drink? Or do you despise the church of God and shame those who have nothing? What shall I say to you? Shall I praise you? In this I will not praise you.