Isaiah 30:20-22. And though the Lord give you the bread of adversity, and the water of affliction, yet shall not thy teachers be removed into a corner any more, but thine eyes shall see thy teachers: And thine ears shall hear a word behind thee, saying, This is the way, walk ye in it, when ye turn to the right hand, and when ye turn to the left. Ye shall defile also the covering of thy graven images of silver, and the ornament of thy molten images of gold: thou shalt cast them away as a menstruous cloth; thou shalt say unto it, Get thee hence.”
How different things will be for Israel when they finally turn to Jesus Christ and accept Him as Messiah! There will be no more adversity; no more affliction; they will accept the words of their teachers; they will follow the urging of the Lord in choosing the path to follow.
More, they will destroy all their idols and idolatrous ways, and they will never return to worshiping idols. Idolatry was always the sin that led to the downfall of the nation, all throughout their history. They would be turned aside from following God by all the nations surrounding them, and especially when they married into those nations. That will all be over. Jesus will be supreme, as He has always been. The difference is that during the Millennial period, His people will acknowledge His supremacy. And they will be blessed.