5 Bible Verses about Sealing A Covenant

And as they were eating, Jesus took a [small] loaf of bread, asked God's blessing on it, then broke it and gave pieces to His disciples and said, "Take some and eat it; this is [i.e., represents] my [physical] body." And He took a cup [i.e., probably wine made from fresh or possibly preserved grape juice], gave thanks to God, then passed it to them, saying, "All of you, drink from it; for this is [i.e., represents] my blood of the Agreement [i.e., between God and mankind], which is [to be] poured out for many people in order for [their] sins to be forgiven.read more.
But I tell you, I will not drink of this fruit of the vine [i.e., grape juice] from now on until that day when I will drink it again with you [i.e., figuratively] in my Father's kingdom."

And as they were eating He took a [small] loaf of bread, and when He had asked God's blessing on it, He broke it and gave [pieces] to His disciples and said, "Take this, it is [i.e., represents] my [physical] body." Then He took a cup [i.e., probably wine made from fresh or possibly preserved grape juice], and when He had given thanks to God, He passed it to them and they all drank from it. And He said to them, "This is [i.e., represents] my blood of the Agreement [i.e., between God and mankind] which is [to be] poured out for many people.read more.
Truly I tell you, I will not drink of this fruit of the vine [i.e., grape juice] any more until that day when I will drink it again [i.e., figuratively] in the kingdom of God."

Then Jesus took a cup [Note: This was one of the cups partaken of during the Passover meal], and after giving thanks to God [for it], He said, "Take this and share it among yourselves, for I tell you, I will not drink this fruit of the vine [i.e., grape juice] from now on until [I do, figuratively, when] the kingdom of God has come." Then He took a [small] loaf of bread, and after He had given thanks to God, He broke it and gave [pieces] to His apostles, and said, "This is [i.e., represents] my [physical] body which is [to be] given for you; continue to do this [i.e., eat it regularly] to remember me by."read more.
And in the same way He took [another] cup, after the [Passover] meal, and said, "This cup is [i.e., represents] the New Agreement [i.e., between God and mankind] made by my blood, which is [to be] poured out for you.

For I received from the Lord what I also handed on to you: On the night the Lord Jesus was turned over [to the Jewish authorities] He took bread, and after giving thanks [for it], He broke it [in pieces] and said, "This represents my [physical] body, which is [to be given] for you. [Continue to] do this in memory of me." In the same way [He took] the cup also, after supper, and said, "This cup [i.e., its contents] represents the New Agreement [ratified] by my blood. [Continue to] do this, whenever you people drink from it, in memory of me."

and to Jesus, the Mediator of a New Agreement [between God and mankind], and to the sprinkled blood [of Jesus], which says better things [to us] than [the blood of] Abel did. [Note: The contrast seems to be that "Abel's blood called for vengeance and death (See Gen. 4:10) whereas the blood of Christ provides mercy and life"].