1 Corinthians 11:23-32 (New International Version)

 ²³For I received from the Lord what I also passed on to you: The Lord Jesus, on the night he was betrayed, took bread, ²⁴and when he had given thanks, he broke it and said, "This is my body, which is for you; do this in remembrance of me." ²⁵In the same way, after supper he took the cup, saying, "This cup is the new covenant in my blood; do this, whenever you drink it, in remembrance of me." ²⁶For whenever you eat this bread and drink this cup, you proclaim the Lord's death until he comes.

 ²⁷Therefore, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of sinning against the body and blood of the Lord. ²⁸A man ought to examine himself before he eats of the bread and drinks of the cup. ²⁹For anyone who eats and drinks without recognizing the body of the Lord eats and drinks judgment on himself. ³⁰That is why many among you are weak and sick, and a number of you have fallen asleep. ³¹But if we judged ourselves, we would not come under judgment. ³²When we are judged by the Lord, we are being disciplined so that we will not be condemned with the world.