26 I will give you a new heart and put a new spirit within you; I will take the heart of stone out of your flesh and give you a heart of flesh. 27 I will put My Spirit within you and cause you to walk in My statutes, and you will keep My judgments and do them (Ezekiel 36:26-27).
In reading through the Westminster Confession of Faith again, I was struck by how much this verse says when it comes to the Law of God. The above verse is a description of the new covenant, which we are now under with Christ. The new covenant was and is at the center of Christ’s ministry and His people. Remember that when He instituted the signs of the new covenant, especially the LORD’s supper, He declared that the wine is the new covenant in My blood. This is not some minor doctrine of the faith.
What I want us to see is that focus of the new covenant: it’s the Law. What has God promised do under the new covenant? First, He has promised to put His Spirit within us. This shows us that the new covenant is far better than the old covenant under Moses. Not that we ignore the old covenant, there is a lot to learn from the old covenant and it helps us understand the grace we have been given under the new covenant.