5 Bible Verses about Sealing A Covenant

While they were yet eating, Jesus took bread, and having given thanks, he brake it, and gave it to the disciples, saying, take, eat; this represents my body. and he took the cup, and having given thanks, he gave it to them, saying, drink ye all of it: for this represents my blood, the blood of the new covenant which is shed for mankind for the remission of sins.read more.
but this I tell you, I shall not drink any more wine with you from this time forth to the day, when I shall drink with you, of the spiritual wine, in my father's kingdom.

When they had been eating, Jesus took bread, and having given thanks, he brake it, and gave it to them, and said, take it, this represents 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 to them, this represents the effusion of my blood (the sanction of the new covenant) for mankind.read more.
but this I tell you, I will never more drink of this fruit of the vine, from this time forth to that day, when I shall drink with you of the spiritual wine in the kingdom of God.

having then taken the cup, and given thanks, he said, take this, and distribute it to one another. for I tell you, I will not drink of the fruit of the vine to the time when the kingdom of God shall come. then he took bread, and having given thanks, he brake it, and gave it to them, saying, this represents my body which is given for you: do this in remembrance of me.read more.
and after supper he likewise gave the cup, saying, this cup is the new testament sealed by my blood, which is shed for you.

For I received it from the Lord, and I inform'd you of it: that the Lord Jesus, the night in which he was betrayed, took bread: and when he had given thanks, he brake it, and said, "take, eat; this is my body, which is broken for you: this do in remembrance of me." in the same manner he took the cup, after supper, and said, "this cup is the new covenant in my blood: this do ye, as oft as ye drink it, in remembrance of me."

to Jesus the mediator of the new covenant, and to the aspersion of that blood which cries for pardon, and not for vengeance as that of Abel.