On the night that Jesus was betrayed He took the cup after supper and spoke words that any Jewish person familiar with the Old Testament would have marveled to hear, “This cup is the new covenant in My blood, which is shed for you” (Lk. 22:20b). At long last the time had come! The covenant spoken about approximately six hundred years earlier via the prophet Jeremiah was about to be implemented and ratified with the shedding of Jesus’ blood on the cross. This was, and is, cause for celebration. But such celebration must be fueled by understanding (cf. Ps. 47:7b). And if we are to understand and appreciate this New Covenant it is good to begin by setting it against the backdrop of the Old Covenant – at least that’s how Jeremiah presented it in the passage before us.