Exodus 24:3-8 NIV
When Moses went and told the people all the Lord’s words and laws, they responded with one voice, “Everything the Lord has said we will do.” Moses then wrote down everything the Lord had said. He got up early the next morning and built an altar at the foot of the mountain and set up twelve stone pillars representing the twelve tribes of Israel. Then he sent young Israelite men, and they offered burnt offerings and sacrificed young bulls as fellowship offerings to the Lord. Moses took half of the blood and put it in bowls, and the other half he splashed against the altar. Then he took the Book of the Covenant and read it to the people. They responded, “We will do everything the Lord has said; we will obey.” Moses then took the blood, sprinkled it on the people and said, “This is the blood of the covenant that the Lord has made with you in accordance with all these words.”
God ever faithful, you have made a covenant with your people in the gift of your Son, who offered his body for us and poured out his life for the many. As we celebrate this Eucharistic sacrifice, build up your Church by deepening within us the life of your covenant and by opening our hearts to those in need. We ask this through our Lord Jesus Christ, your Son, who lives and reigns with you, in the unity of the Holy Spirit, God for ever and ever.
Mark 14:12-16, 22-26 NAB
On the first day of the Feast of Unleavened Bread, when they sacrificed the Passover lamb, his disciples said to him, “Where do you want us to go and prepare for you to eat the Passover?” He sent two of his disciples and said to them, “Go into the city and a man will meet you, carrying a jar of water. Follow him. Wherever he enters, say to the master of the house, ‘The Teacher says, “Where is my guest room where I may eat the Passover with my disciples?”’ Then he will show you a large upper room furnished and ready. Make the preparations for us there.” The disciples then went off, entered the city, and found it just as he had told them; and they prepared the Passover. While they were eating, he took bread, said the blessing, broke it, and gave it to them, and said, “Take it; this is my body.” Then he took a cup, gave thanks, and gave it to them, and they all drank from it. He said to them, “This is my blood of the covenant, which will be shed for many. Amen, I say to you, I shall not drink again the fruit of the vine until the day when I drink it new in the kingdom of God.” Then, after singing a hymn, they went out to the Mount of Olives.
Hebrews 9:11-15 NIV
But when Christ came as high priest of the good things that are now already here, he went through the greater and more perfect tabernacle that is not made with human hands, that is to say, is not a part of this creation. He did not enter by means of the blood of goats and calves; but he entered the Most Holy Place once for all by his own blood, thus obtaining eternal redemption. The blood of goats and bulls and the ashes of a heifer sprinkled on those who are ceremonially unclean sanctify them so that they are outwardly clean. How much more, then, will the blood of Christ, who through the eternal Spirit offered himself unblemished to God, cleanse our consciences from acts that lead to death, so that we may serve the living God! For this reason Christ is the mediator of a new covenant, that those who are called may receive the promised eternal inheritance—now that he has died as a ransom to set them free from the sins committed under the first covenant.