How to test prophecy, preaching and guidance

How do you test the spirits? How do you know if a prophecy or teaching is of God...or of the flesh....or of the devil? How can you distinguish the genuine from the counterfeit, God's truth from the enemies error? That is the subject of this book and it is not optional. It's mandatory that you learn how to "test the spirits," How to test everything that comes to you through DVDs, television, radio, books, internet, in person-to-person ministry as to its agreement to God's word, the scriptures.