The cup of the blessing that we bless, is it not a participation of the blood of the Christ? The bread that we break, is it not a participation of the body of the Christ?

Because we, the many, are one bread, one body, for we are all partakers of the one bread.

For I received from the Lord what I also delivered to you, that the Lord Jesus in the night in which he was betrayed took bread,

For as often as ye eat this bread and drink this cup, ye proclaim the Lord's death until he comes.

Therefore whoever may eat this bread or drink the cup of the Lord unworthily of the Lord, will be guilty of the body and the blood of the Lord.

But let a man examine himself, and let him so eat of the bread, and drink of the cup.