5 Bible Verses about Sealing A Covenant

As they were eating he took a loaf and after the blessing he broke it; then he gave it to the disciples saying, "Take and eat this, it means my body." He also took a cup and after thanking God he gave it to them saying, "Drink of it, all of you; this means my blood, the new covenant-blood, shed for many, to win the remission of their sins.read more.
I tell you, after this I will never drink this produce of the vine till the day I drink it new with you in the Realm of my Father."

And as they were eating he took a loaf, and after the blessing he broke and gave it to them, saying, "Take this, it means my body." He also took a cup and after thanking God he gave it to them, and they all drank of it; he said to them, "This means my covenant-blood which is shed for many;read more.
truly I tell you, I will never drink the produce of the vine again till the day I drink it new within the Realm of God."

And he took a cup which was handed to him, gave thanks to God and said, "Take this and distribute it among yourselves, for I tell you I will never drink the produce of the vine again till such time as God's Reign comes." Then he took a loaf, and after thanking God he broke it and gave it to them, saying, "This means my body given up for your sake; do this in memory of me."read more.
So too he gave them the cup after supper, saying, "This cup means the new covenant ratified by my blood shed for your sake.

I passed on to you what I received from the Lord himself, namely, that on the night he was betrayed the Lord Jesus took a loaf, and after thanking God he broke it, saying, 'This means my body broken for you; do this in memory of me.' In the same way he took the cup after supper, saying, 'This cup means the new covenant ratified by my blood; as often as you drink it, do it in memory of me.'

to Jesus who mediates the new covenant, and to the sprinkled blood whose message is nobler than Abel's.