is TIME.
TIMES proves whether one who predicts, conjects or prophesies is a False Prophet or not.
How many times does a false prophet have to be proved WRONG by TIME to be a False Prophet?
According to this, JUST ONCE DOES IT....
You may say to yourself, ‘How can we recognize a message the Lord has not spoken?’ When a prophet speaks in the Lord ’s name, and the message does not come true or is not fulfilled, that is a message the Lord has not spoken. The prophet has spoken it presumptuously. Do not be afraid of him.
Deuteronomy 18:21-22