Then Moses took the blood in the bowls and threw it on the people. He said, “This is the blood that seals the covenant which the Lord made with you when he gave all these commands.”
The Lord says, “Because of my covenant with you that was sealed by the blood of sacrifices, I will set your people free— free from the waterless pit of exile.
Jesus said to them, “I am telling you the truth: if you do not eat the flesh of the Son of Man and drink his blood, you will not have life in yourselves.
The cup we use in the Lord's Supper and for which we give thanks to God: when we drink from it, we are sharing in the blood of Christ. And the bread we break: when we eat it, we are sharing in the body of Christ.
In the same way, after the supper he took the cup and said, “This cup is God's new covenant, sealed with my blood. Whenever you drink it, do so in memory of me.”