Then Moses took the blood, sprinkled it on the people, and said, “Behold the blood of the covenant, which Adonai has cut with you, in agreement with all these words.”
not like the covenant I made with their fathers in the day I took them by the hand to bring them out of the land of Egypt. For they broke My covenant, though I was a husband to them.” it is a declaration of Adonai.
In the same way, He also took the cup, after supper, saying, “This cup is the new covenant in My blood. Do this, as often as you drink it, in memory of Me.”