31 "The days are coming," declares the Lord, "when I will make a new covenant with the people of Israel and with the people of Judah. 32 It will not be like the covenant I made with their ancestors when I took them by the hand to lead them out of Egypt, because they broke my covenant, though I was a husband to[1] them,[2] " declares the Lord. 33 "This is the covenant I will make with the people of Israel after that time," declares the Lord. "I will put my law in their minds and write it on their hearts. I will be their God, and they will be my people. 34 No longer will they teach their neighbor, or say to one another, 'Know the Lord,' because they will all know me, from the least of them to the greatest," declares the Lord. "For I will forgive their wickedness and will remember their sins no more."

Matthew Henry's Commentary on Jeremiah 31:31-34

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.