1CO 11:27
Therefore, 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. 28 A
man ought to examine himself before he eats of the bread and drinks of the cup.
29 For anyone who eats and drinks without recognizing the body of the Lord eats
and drinks judgment on himself. 30 That is why many among you are weak and
sick, and a number of you have fallen asleep. 31 But if we judged ourselves, we
would not come under judgment. 32 When we are judged by the Lord, we are being
disciplined so that we will not be condemned with the world.