Jeremiah 18:9

9 And at what instant I shall speak concerning a nation, and concerning a kingdom, to build and to plant it;

Jeremiah 18:9 Meaning and Commentary

Jeremiah 18:9

And [at what] instant I shall speak concerning a nation, and
concerning a kingdom
By way of promise on the other hand: or, "and the moment I shall speak" as in ( Jeremiah 18:7 ) ; in favour to a people; signifying, that if they do that which is right and good, and continue therein, it may be expected that I will appear for and among such a nation and kingdom: to build and to plant [it];
to build up its fences that have been broken down, and to plant it with pleasant plants, and make it prosperous and flourishing, and protect and defend it, and keep it safe, and in a secure condition; so that it shall be in very thriving circumstances, and be out of the power of its enemies to hurt it.

Jeremiah 18:9 In-Context

7 At what instant I shall speak concerning a nation, and concerning a kingdom, to pluck up and to break down and to destroy it;
8 if that nation, concerning which I have spoken, turn from their evil, I will repent of the evil that I thought to do unto them.
9 And at what instant I shall speak concerning a nation, and concerning a kingdom, to build and to plant it;
10 if they do that which is evil in my sight, that they obey not my voice, then I will repent of the good, wherewith I said I would benefit them.
11 Now therefore, speak to the men of Judah, and to the inhabitants of Jerusalem, saying, Thus saith Jehovah: Behold, I frame evil against you, and devise a device against you: return ye now every one from his evil way, and amend your ways and your doings.
The American Standard Version is in the public domain.