Bible: 1 Corinthians 11:23-31
11:23 For I received from the Lord what I also passed on to you, that the Lord Jesus on the night in which he was betrayed took bread, 11:24 and after he had given thanks he broke it and said, “This is my body, which is for you. Do this in remembrance of me.” 11:25 In the same way, he also took the cup after supper, saying, “This cup is the new covenant in my blood. Do this, every time you drink it, in remembrance of me.” 11:26 For every time you eat this bread and drink the cup, you proclaim the Lord’s death until he comes.
11:27 For this reason, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of the body and blood of the Lord. 11:28 A person should examine himself first, 1 and in this way 2 let him eat the bread and drink of the cup. 11:29 For the one who eats and drinks without careful regard 3 for the body eats and drinks judgment against himself. 11:30 That is why many of you are weak and sick, and quite a few are dead. 4 11:31 But if we examined ourselves, we would not be judged.