1 Corinthians 11:24, 27
1 Corinthians 11:24 NIV
and when he had given thanks, he broke it and said, “This is my body, which is for you; do this in remembrance of me.”
1 Corinthians 11:27 NIV
So then, 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.