20, 21. (a) What is promised at Jeremiah 31:31-34? (b) What was the new covenant’s stated purpose? (c) As a result, what would become of the Law covenant?

²⁰ It was about 900 years after Moses that Jeremiah conveyed to the nation of Israel God’s words: “See, a time is coming​—declares the LORD—​when I will make a new covenant with the House of Israel and the House of Judah. It will not be like the covenant I made with their fathers, when I took them by the hand to lead them out of the land of Egypt, a covenant which they broke, . . .​—declares the LORD. But such is the covenant I will make with the House of Israel after these days . . . I will forgive their iniquities, and remember their sins no more.”d​—Jeremiah 31:31-34.

²¹ If the prophet like Moses is to serve as a new mediator of a new covenant, then it also becomes clear that all the specific details of worship required under the Mosaic Law would be in force not permanently but rather only until the new covenant would be established. Certainly, when God would provide a basis for ‘forgiving their iniquities and remembering their sins no more,’ there would no longer be a need for the entire system of sacrifices provided by the temple arrangement, which brought about only temporary forgiveness. With the establishment of the new covenant, ceremonial aspects of the Law covenant, such as observing the Sabbath and holidays, would also no longer hold the same meaning. In his due time, God would certainly reveal what would be required of those in that promised new covenant arrangement.​—Amos 3:7.