Dueling Prophets (Jeremiah 27-29)

So you've got 2 people each claiming to have messages from God, and these messages don't agree. How do you know which is the false prophet? Seems pretty straightforward... I'd trust the one whose predictions came true! You'd think after 40 years or so, the people would start to listen to Jeremiah. But, they've got yahoos like these two stirring things up.

I think this still holds true, that you can judge people (or groups of people) by the truth of their words... Do they actually do the things they say they will? When they tell you something, does it square up with reality? If it doesn't, find someone else more deserving of your allegiance.