The Bible Says
"For I received from the Lord what I also pass on to you: The Lord Jesus, on the night he was betrayed, took bread, and when he had given thnks, he broke it and said, 'This is my body, which is for you; do this in remembrance of me.' In the same way, after the supper he took the cup, saying, 'This cup is the new covenant in my blood; do this, whenever you drink it, in remembrance of me.' For whenever you eat this bread and drink this cup, you proclaim the Lord's death until he comes."
I Corinthians 11:23-26