Jeremiah 31:31-33

Behold, the days are coming, says the Lord, when I will make a new covenant with the house of Israel and with the house of Judah, [Luke 22:20; I Cor. 11:25.] Not according to the covenant which I made with their fathers in the day when I took them by the hand to bring them out of the land of Egypt, My covenant which they broke, although I was their Husband, says the Lord. But this is the covenant which I will make with the house of Israel: After those days, says the Lord, I will put My law within them, and on their hearts will I write it; and I will be their God, and they will be My people.