Charles Spurgeon Commentary Jeremiah 31:31-33

"Behold, the days come, saith Jehovah, that I will make a new covenant with the house of Israel, and with the house of Judah: not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the land of Egypt; which my covenant they brake, although I was a husband unto them, saith Jehovah. But this is the covenant that I will make with the house of Israel after those days, saith Jehovah: I will put my law in their inward parts, and in their heart will I write it; and I will be their God, and they shall be my people:" — Jeremiah 31:31-33 (ASV)

The days come, saith the LORD, that I will make a new covenant with the house of Israel, and with the house of Judah: not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the Land of Egypt; which my covenant they brake, although I was an husband unto them, saith the LORD: but this shall be the covenant that I will make with the house of Israel, After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.

It is all wills and shalls; it is all covenant life; — no longer the law graven upon the tables of stone, but the law written on the heart; — no more the Lord's command without man's power and will to obey it; but God will renew our nature, and change our disposition, so that we will love to do what once we loathed, and will loathe the sins that we once loved. What a wonderful mass of mercies is included in the covenant of grace!

Behold, the days come, saith the LORD, that I will make a new covenant with the house of Israel, and with the house of Judah: not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the land of Egypt; which my covenant they brake, although I was an husband unto them, saith the LORD: but this shall be the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.

The old covenant was written on tables of stone; but the Lord said, concerning the new covenant, I will put my law in their inward parts. The old law was hidden from sight when it was written a second time, and placed in the ark of the covenant; and God says of his new law, I will write it in their hearts. They were always rebelling against God, and wandering away from him; but in this new, gracious covenant, he says, I will be their God, and they shall be my people.