1 Corinthians 11:25-27

Complete Jewish Bible

²⁵ likewise also the cup after the meal, saying, “This cup is the New Covenant effected by my blood; do this, as often as you drink it, as a memorial to me.” ²⁶ For as often as you eat this bread and drink the cup, you proclaim the death of the Lord, until he comes.

²⁷ Therefore, whoever eats the Lord’s bread or drinks the Lord’s cup in an unworthy manner will be guilty of desecrating the body and blood of the Lord!