As they were eating, Jesus took a loaf of bread and asked God's blessing on it. Then he broke it in pieces and gave it to the disciples, saying, "Take it, for this is my body."
And he took a cup of wine and gave thanks to God for it. He gave it to them, and they all drank from it.
And he said to them, "This is my blood, poured out for many, sealing the covenant between God and his people.
References for Mark 14:24
I solemnly declare that I will not drink wine again until that day when I drink it new in the Kingdom of God."
Then they sang a hymn and went out to the Mount of Olives.