The Mosaic Covenant and the New Covenant

Jeremiah 31:1 says, "I will walk among you and be your God" The book of Exodus is showing a redeemed people inter-covenate with the Lord. It's not an absolute contrast, as I mentioned earlier, why? Because he says in the new covenant, I'm going to write the law, which came where? On your hearts. So that's continuity. That's not discontinuity, right? He's repeated the promise that was mentioned here, here, here. And so this is one of the prophets. How does Jeremiah's message fit with the other prophets?"