And they shall teach no more every man his neighbour, and every man his brother, saying: Know the Lord: for all shall know me from the least of them even to the greatest, saith the Lord: for I will forgive their iniquity, and I will remember their sin no more.
Jeremiah 31:32 Not according to the covenant which I made with their fathers, in the day that I took them by the hand to bring them out of the land of Egypt, the covenant which they made void, and I had dominion over them, saith the Lord.
Jeremiah 31:33 But this shall be the covenant that I will make with the house of Israel, after those days, saith the Lord: I will give my law in their bowels, and I will write it in their heart: and I will be their God, and they shall be my people.
Jeremiah 31:34 And they shall teach no more every man his neighbour, and every man his brother, saying: Know the Lord: for all shall know me from the least of them even to the greatest, saith the Lord: for I will forgive their iniquity, and I will remember their sin no more.
Jeremiah 31:35 Thus saith the Lord, who giveth the sun for the light of the day, the order of the moon and of the stars, for the light of the night: who stirreth up the sea, and the waves thereof roar, the Lord of hosts is his name.
Jeremiah 31:36 If these ordinances shall fail before me, saith the Lord: then also the seed of Israel shall fail, so as not to be a nation before me for ever.
The verse centers on "shall", "teach", "neighbour", "brother", "saying", "lord", and "least". It is saying that the verse draws attention to "shall" and "teach", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 33's "But this shall be the covenant that..." into verse 35's "Thus saith the Lord who giveth the...", so "shall" and "teach" belong inside that flow. In Jeremiah context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "shall" and "teach" with trust shaped by these words, not by a vague optimism outside the passage.