Jeremiah 31 - Through His blood the Spirit can dwell within us and we can walk in obedience. 2017

Jer 31:34
"And they shall not teach again, each man his neighbor and each man his brother, saying, 'Know the LORD,' for they shall all know Me, from the least of them to the greatest of them," declares the LORD, "for I will forgive their iniquity, and their sin I will remember no more."
The New Covenant is prophesied in Torah.

Deut. 30:6-9 “Moreover the LORD your God will circumcise your heart and the heart of your descendants, to love the LORD your God with all your heart and with all your soul, in order that you may live. 7“And the LORD your God will inflict all these curses on your enemies and on those who hate you, who persecuted you. 8“And you shall again obey the LORD, and observe all His commandments which I command you today. 9“Then the LORD your God will prosper you abundantly in all the work of your hand, in the offspring of your body and in the offspring of your cattle and in the produce of your ground, for the LORD will again rejoice over you for good, just as He rejoiced over your fathers;

It is also prophesied in other parts of Scripture.

Ezek. 11:19-21 “And I shall give them one heart, and shall put a new spirit within them. And I shall take the heart of stone out of their flesh and give them a heart of flesh, 20that they may walk in My statutes and keep My ordinances, and do them. Then they will be My people, and I shall be their God. 21“But as for those whose hearts go after their detestable things and abominations, I shall bring their conduct down on their heads,” declares the Lord GOD.

Ezek. 36:25-27 “Then I will sprinkle clean water on you, and you will be clean; I will cleanse you from all your filthiness and from all your idols. 26“Moreover, I will give you a new heart and put a new spirit within you; and I will remove the heart of stone from your flesh and give you a heart of flesh. 27“And I will put My Spirit within you and cause you to walk in My statutes, and you will be careful to observe My ordinances.

Exek. 37:25-27 “And they shall live on the land that I gave to Jacob My servant, in which your fathers lived; and they will live on it, they, and their sons, and their sons’ sons, forever; and David My servant shall be their prince forever. 26“And I will make a covenant of peace with them; it will be an everlasting covenant with them. And I will place them and multiply them, and will set My sanctuary in their midst forever. 27“My dwelling place also will be with them; and I will be their God, and they will be My people.

It is prayed for in

Psalm 51:9-12 Hide Thy face from my sins, And blot out all my iniquities. 10Create in me a clean heart, O God, And renew a steadfast spirit within me. 11Do not cast me away from Thy presence, And do not take Thy Holy Spirit from me. 12Restore to me the joy of Thy salvation, And sustain me with a willing spirit. The New Covenant is given through the blood of Messiah.

Luke 22:20 And in the same way He took the cup after they had eaten, saying, “This cup which is poured out for you is the new covenant in My blood.

It is through His blood that the Spirit of Elohim can dwell within us and that we can walk in obedience to His Word..