1 Corinthians 11:25-27

Young's Literal Translation

²⁵ In like manner also the cup after the supping, saying, `This cup is the new covenant in my blood; this do ye, as often as ye may drink [it] -- to the remembrance of me;'

²⁶ for as often as ye may eat this bread, and this cup may drink, the death of the Lord ye do shew forth -- till he may come;

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: