If you were watching the news -
notice that the iranian president predicted that the
12th imam would come out of the well in 2007.
ahmadinejad
prediction made in January 2007:
The 12th imam,
the mahdi,
will come out of the well.

It didn't happen - of course - if it had -
it would not be as ahmadinejad
had expected:

Deuteronomy 18:20 - 22
The prophet, which shall presume to speak a word ...... in the name of other gods,
even that prophet shall die.
And if thou say in thine heart, How shall we know the word which the LORD hath not spoken?
When a prophet speaketh in the name of the LORD,
if the thing follow not, nor come to pass,
that [is] the thing which the LORD hath not spoken,
[but] the prophet hath spoken it presumptuously: thou shalt not be afraid of him.
test for
False prophet
Does what is predicted comes to pass?
If it doesn't come to pass
then this is a false prophet.
or
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or