The Bible has much to say concerning the dangers of apostasy in the last days of this Age of Grace. We are warned, "Be sober, be vigilant, because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour.... Many false prophets are gone out into the world.... Many deceivers are entered into the world..... In the last days perilous times shall come." Many truly born again saints of God acknowledge the existence of a devil and realize to some degree the power he holds in this world, but do not fully comprehend his method of operation. These are times when every believer should understand the Bible truth that Satan is real, hell is real, and those who choose to serve the devil in this life will spend eternity with him in everlasting torment. The truths herein presented are not new -- they are as old as time itself. Many of them have been included in other writings. But our endeavor here has been to assemble them in such a way as to make them understandable and practical. May God bless the message to his glory. - Foreword.