8:8 For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the {c} house of Israel and with the house of Judah:
(c) He calls it a house, as it were one family of the whole kingdom: for while the kingdom of David was divided into two sections, the Prophet would have us understand that through the new Testament they shall be joined together again in one.
8:8 Behold, I will make a new covenant. By the mouth of Jeremiah (Jer 31:31-34), the Lord declared that he would make a New Covenant which would take the place of the Old Covenant. This shows that the Old did not meet the full needs of men.
8:8 But there is; for finding fault with them - Who were under the old covenant he saith, I make a new covenant with the house of Israel - With all the Israel of God, in all ages and nations. It is new in many respects, though not as to the substance of it: Being ratified by the death of Christ. Freed from those burdensome rites and ceremonies. Containing a more full and clear account of spiritual religion. Attended with larger influences of the Spirit Extended to all men. And, Never to be abolished. Jer 31:31, and c.
8:7-13 The superior excellence of the priesthood of Christ, above that of Aaron, is shown from that covenant of grace, of which Christ was Mediator. The law not only made all subject to it, liable to be condemned for the guilt of sin, but also was unable to remove that guilt, and clear the conscience from the sense and terror of it. Whereas, by the blood of Christ, a full remission of sins was provided, so that God would remember them no more. God once wrote his laws to his people, now he will write his laws in them; he will give them understanding to know and to believe his laws; he will give them memories to retain them; he will give them hearts to love them, courage to profess them, and power to put them in practice. This is the foundation of the covenant; and when this is laid, duty will be done wisely, sincerely, readily, easily, resolutely, constantly, and with comfort. A plentiful outpouring of the Spirit of God will make the ministration of the gospel so effectual, that there shall be a mighty increase and spreading of Christian knowledge in persons of all sorts. Oh that this promise might be fulfilled in our days, that the hand of God may be with his ministers so that great numbers may believe, and be turned to the Lord! The pardon of sin will always be found to accompany the true knowledge of God. Notice the freeness of this pardon; its fulness; its fixedness. This pardoning mercy is connected with all other spiritual mercies: unpardoned sin hinders mercy, and pulls down judgments; but the pardon of sin prevents judgment, and opens a wide door to all spiritual blessings. Let us search whether we are taught by the Holy Spirit to know Christ, so as uprightly to love, fear, trust, and obey him. All worldly vanities, outward privileges, or mere notions of religion, will soon vanish away, and leave those who trust in them miserable for ever.