1 Corinthians 11:27-34 NASB
27 Therefore whoever eats the bread or drinks the cup of the Lord in an unworthy manner, shall be guilty of the body and the blood of the Lord. 28 But a man must examine himself, and in so doing he is to eat of the bread and drink of the cup. 29 For he who eats and drinks, eats and drinks judgment to himself if he does not judge the body rightly. 30 For this reason many among you are weak and sick, and a number sleep. 31 But if we judged ourselves rightly, we would not be judged. 32 But when we are judged, we are disciplined by the Lord so that we will not be condemned along with the world. 33 So then, my brethren, when you come together to eat, wait for one another. 34 If anyone is hungry, let him eat at home, so that you will not come together for judgment. The remaining matters I will arrange when I come.
