Jeremiah 31:31-34 (Holy Saturday Vespers)

"Behold, the days are coming, says the LORD, when I will make a new covenant with the house of Israel and the house of Judah,  not like the covenant which I made with their fathers when I took them by the hand to bring them out of the land of Egypt, my covenant which they broke, though 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 I will write it upon their hearts; and I will be their God, and they shall be my people.   And no longer shall each man teach his neighbor and each his brother, saying, 'Know the LORD,' for they shall all know me, from the least of them to the greatest, says the LORD; for I will forgive their iniquity, and I will remember their sin no more."