I seem to be frustrating you.
“23 For I received from the Lord what I also delivered to you, that the Lord Jesus on the night when he was betrayed took bread, 24 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.” 25 In the same way also he took the cup, after supper, saying, “This cup is the new covenant in my blood. Do this, as often as you drink it, in remembrance of me.” 26 For as often as you eat this bread and drink the cup, you proclaim the Lord’s death until he comes.
27 Whoever, therefore, eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty concerning the body and blood of the Lord.”
That’s a direct quote from what Paul wrote to the Corinthians. Considering that Paul was trying to make sure that his letter was understood by anyone who read it, I cannot see any other explanation other than that he meant what he said and said what he meant.
And so I have to believe it.