Jeremiah 14:14 (KJV)
14 Then the Lord said unto me, The prophets prophesy lies in my name: I sent them not, neither have I commanded them, neither spake unto them: they prophesy unto you a false vision and divination, and a thing of nought, and the deceit of their heart.
Jeremiah 14
Joseph Smith False Prophecies: Earth Will Tremble
Examine yourself to know that you are in the faith of Jesus. This way you won’t be led astray by false prophets.