The struggle of good and evil within every human leads to the deliberate misinterpretation of religions to disintegrate from their principles, to justify mistakes and to rest the conscience until the mistakes becomes religion,isis ignored principles in islam that rejected what they did and adopted other principles that they interpreted to serve their goals and persuaded others to join them the new mechanism believed to do things to serve religion , The clash of religions, civilizations, economic hegemony and the presence of clerics throughout the ages using religion to control people is a major reason for the decline of religion as the primary source of principles that serve people's lives