This Bible contradiction is from the EvilBible.com.
Prophecy is sure
2 Peter 1:19 View context
We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:
Prophecy is not sure
Jeremiah 18:7-10 View context
[At what] instant I shall speak concerning a nation, and concerning a kingdom, to pluck up, and to pull down, and to destroy [it];
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.
And [at what] instant I shall speak concerning a nation, and concerning a kingdom, to build and to plant [it];
If it do evil in my sight, that it obey not my voice, then I will repent of the good, wherewith I said I would benefit them.