What Jesus said about communion

And as they did eat, Jesus took bread, and blessed, and brake it, and gave to them, and said, Take, eat: this is my body. And he took the cup, and when he had given thanks, he gave it to them: and they all drank of it. And he said unto them, This is my blood of the new testament, which is shed for many. Verily I say unto you, I will drink no more of the fruit of the vine, until that day that I drink it new in the kingdom of God. Mark 14:22-25

Other title scriptures

But without faith it is impossible to please Him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.   Hebrews 11:6