NASB 1995
if that nation against which I have spoken turns from its evil, I will relent concerning the calamity I planned to bring on it.

American Standard Version
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.

Berean Study Bible
But if that nation I warned turns from its evil, then I will relent of the disaster I had planned to bring.

Douay-Rheims Bible
If that nation against which I have spoken, shall repent of their evil, I also will repent of the evil that I have thought to do to them.

English Revised Version
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.

King James Bible
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.

World English Bible
if that nation, concerning which I have spoken, turn from their evil, I will repent of the evil that I thought to do to them.

Young's Literal Translation
And that nation hath turned from its evil, Because I have spoken against it, Then I have repented of the evil that I thought to do to it.

Jeremiah 18:8 Additional Translations ...