1 Korintus 11:24-25

11:24 and after he had given thanks he broke it and said, “This is my body, which is for you. Do this in remembrance of me.” 11:25 In the same way, he also took the cup after supper, saying, “This cup is the new covenant in my blood. Do this, every time you drink it, in remembrance of me.”

1 Korintus 11:27

11:27 For this reason, whoever eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of the body and blood of the Lord.