Jer. 31:33-34 But this is the covenant…: I will put My law in their inward parts and write it upon their hearts; and I will be their God, and they will be My people….All of them will know Me, from the little one among them even to the great one among them, declares Jehovah, for I will forgive their iniquity, and their sin I will remember no more.
In Jeremiah 31, Jeremiah laid the foundation of the new covenant, prophesying that God will put His law within us; that He will write His law into our mind that we may know God; that God will be our God and we will be His people; that we will not need anyone to teach us, because we will all have a teaching life within us; and that God will forgive our iniquity and remember our sins no longer. In the new covenant we enjoy the inner law of life. This law of life brings us God’s person and also the divine capacity of the divine life, which can accomplish everything for God to fulfill His economy. By the inner law of life we have the capacity to know God, to live God, and even to be constituted with God in His life and nature so that we may be His corporate expression. (Life-study of Jeremiah, pp. 257-258)
We need all the twenty-seven books of the New Testament to define this one short portion of Jeremiah 31:31-34. If we understand this portion in light of the entire New Testament, we will see that in this new covenant we have the church, the kingdom of God, God’s household, the house of God as God’s dwelling place in our spirit, the new man, and the Body of Christ as the fullness of the processed and consummated Triune God. Eventually, this new covenant will bring in the millennium. Ultimately and consummately, it will bring in the New Jerusalem in the new heaven and new earth for eternity. (Life-study of Jeremiah, p. 258)
On earth, Christ cut the pathway of the cross, and in heaven He has opened a new and living way into the Holy of Holies (Heb. 10:19-20). Christ has purified the heavens and the things in the heavens with His blood….Not only do we need the purification by the blood of Christ, but the heavens and the things in the heavens also need it, as the tabernacle and all things pertaining to it were sprinkled and purified by the blood of the sacrifice. By ascending to the heavens, Christ has confirmed the new covenant and obtained eternal redemption (9:12). His ascension to the heavens confirmed the new covenant that He consummated on earth. There, in the heavens, He found eternal redemption for us.
Christ has obtained a more excellent ministry (8:6). His ministry on the throne today is more excellent than that of the Old Testament priests in the tabernacle. This is His ministry in the Holy of Holies. As the surety and Mediator of the new covenant, Christ enforces the covenant (7:22; 8:6; 9:15). In Greek the word surety means both a guarantee and a person who is a bondsman or sponsor. As the Executor of the New Testament, Christ executes that testament (9:16-17). Christ is the surety of the covenant and the Executor of the testament. For the will there is a need of an executor, someone to execute it. In His ascension, Christ is the Executor of the testament He bequeathed to us.
Christ is the High Priest who intercedes for us and saves us to the uttermost (7:25-26). This is not according to the order of Aaron on earth but according to the order of Melchizedek in heaven. As the heavenly Minister, Christ ministers heaven, life, and power into us (8:2) that we may live the heavenly life on earth. This is not merely to save us from the negative things but to sustain us with the heavenly supply of the divine life. (Life-study of Hebrews, pp. 352-353)
Further Reading: Life-study of Hebrews, msgs. 31, 33, 35-38, 41-42