The messages of false prophets are not to be handled lightly for these men will be judged by Jesus Christ the Righteous!
How do you know if a man is called to preach?
When the child of God needs to be fed, he needs to be fed from the Bible with proper interpretation that gives all the glory to God not man.
John tells us to put all influences on trial. That means we compare everything that comes into our lives with the truth of God's holy word, the Bible. If it does not match up to the entire message of the Bible, we should kick it out of our lives – especially if it is claiming to a message from God!