4. That true believers Falling Away From Grace is impossible in this covenant is seen in the fact that they have the Law of God written on their hearts. The Law of God, which is summarized in the Ten Commandments, is upon the heart of every born-again believer. This is a part of regeneration that God Himself will write His Law so near to us, upon our very nature, not in stone, but upon tablets of flesh (2Cor. 3:3). It is likewise God who will give the ability to follow the Law as is taught in Ezekiel 36:25-27. The Law is no longer something external, but it is something internal. It is a part of His new God-given nature by which he is able to obey and walk in a manner consistent with it by the grace of God.
5. The New Covenant, as the other covenants of God, has the promise that God will be our God and we will be His people. But there is something different about this covenant. The promise of having God as our God is relevant in meaning and efficacy according to the covenant it is attached to. The promise is now attached to a covenant which actuates complete forgiveness of sins, the writing of the Law upon the heart and the indwelling of the Holy Spirit. No covenant before the New had this promise, therefore, it is certain that those who had an outward relationship with God through the Abrahamic and Mosaic Covenants have God as their God, but in a very different sense than in the New Covenant. The New Covenant is a covenant from which apostasy is impossible and therefore the promise means a lot more than what it meant, for example, in the Abrahamic or Mosaic Covenant. It is a covenant which provides intimate relationship with God through His Son and by His Spirit.
6. The New Covenant, unlike all other covenants, only contains believing members. That this is the case may be seen from the fact that everyone in the covenant "knows the Lord." This does not speak of mere cognitional knowledge, but of intimate relationship with God. We know Him in an intimate way, as our Father. There is no need to teach those who are in the covenant to "know the Lord," because they already know Him by the nature of the covenant that they find themselves in. The text does not say there is no need to know about the Lord, but to know the Lord. John says that we have his anointing (1John 2:27). This does not mean that there is no necessity for teaching doctrine. Rather, the salvific knowledge of God comes to us through the Spirit when we believe. There is no need to teach the members of the covenant to know the Lord, because by His Spirit, Who is within them and His Law which is on their hearts, they know the Lord.
7. This New Covenant also includes the promise that the sins of the covenantees will be forgiven. This does not mean that under the Old Covenant sins were not forgiven. But this means that this covenant, by nature, is a c...