Hebrews 8: A New Covenant with God's Law
The superior church ministry of Jesus--which is based in heaven and totally free of anything man-made--is premised on a new covenant. If you don't have this covenant with God then you are not in the Jesus ministry and if you're not in the Jesus ministry which is heaven-based (not earth-based) you are not in covenant with God. It's as simple as that. If you're not faithful to God's covenant, he "turns away" from you [Hebrews 8.9]. And many Christians, even those active in church, do not realize this. You have to be found faithful to God through his new covenant. And the new covenant has a lot to do with God's law. And here's the problem--many churches teach that because you have received salvation by grace and not by works of the law, you can relax on the law. Thus, you find many Christians weak in the Old Testament, especially on the Law. Worse, I even see Christians ignorant of the New Testament. They're just kept busy in church.