Under the New Covenant, the will of God is written not just on tablets of stone, but on the minds and hearts of all God’s people. God not only replaces shadows with substance, but he also takes that substance and places it within his people. He writes it on our hearts. In other words, God does not merely lay his gift of salvation and transformation down at our feet for us to pick up in our own strength and determination. Rather, God picks it up for us and puts it in our hearts and minds, and by doing so he seals us as his children forever.