1 Corinthians 11:23

11:23 For I received from the Lord what I also passed on to you, that the Lord Jesus on the night in which he was betrayed took bread,

1 Corinthians 11:26-27

11:26 For every time you eat this bread and drink the cup, you proclaim the Lord’s death until he comes.

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.