Jeremiah 18:8 in the World English Bible
if that nation, concerning which I have spoken, turns from their evil, I will repent of the evil that I thought to do to them.
Context
7 At what instant I shall speak concerning a nation, and concerning a kingdom, to pluck up, and to pull down, and to destroy it;
8 If that nation, against whom I have pronounced, 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;