1 Coríntios 11

27 so that whoever may eat this bread or may drink the cup of the Lord unworthily, guilty he shall be of the body and blood of the Lord:

28 and let a man be proving himself, and so of the bread let him eat, and of the cup let him drink;

29 for he who is eating and drinking unworthily, judgment to himself he does eat and drink -- not discerning the body of the Lord.