31 See, the days are coming, says the Lord, when I will make a new agreement with the people of Israel and with the people of Judah: 32 Not like the agreement which I made with their fathers, on the day when I took them by the hand to be their guide out of the land of Egypt; which agreement was broken by them, and I gave them up, says the Lord. 33 But this is the agreement which I will make with the people of Israel after those days, says the Lord; I will put my law in their inner parts, writing it in their hearts; and I will be their God, and they will be my people.
Matthew Henry's Commentary on Jeremiah 31:31-33
Commentary on Jeremiah 31:27-34
(Read Jeremiah 31:27-34)
The people of God shall become numerous and prosperous. In Hebrews 8:8,9, this place is quoted as the sum of the covenant of grace made with believers in Jesus Christ. Not, I will give them a new law; for Christ came not to destroy the law, but to fulfil it; but the law shall be written in their hearts by the finger of the Spirit, as formerly written in the tables of stone. The Lord will, by his grace, make his people willing people in the day of his power. All shall know the Lord; all shall be welcome to the knowledge of God, and shall have the means of that knowledge. There shall be an outpouring of the Holy Spirit, at the time the gospel is published. No man shall finally perish, but for his own sins; none, who is willing to accept of Christ's salvation.