In certain religious contexts, evil has been described as a supernatural force

THEORY
Theory
In religion, ethics, philosophy, and psychology "good and evil" is a very common dichotomy. In cultures with Manichaean and Abrahamic religious influence, evil is usually perceived as the dualistic antagonistic opposite of good, in which good should prevail and evil should be defeated.^[1] In cultures with Buddhist spiritual influence, both good and evil are perceived as part of an antagonistic duality that itself must be overcome through achieving Śūnyatā meaning emptiness in the sense of recognition of good and evil being two opposing principles but not a reality, emptying the duality of them, and achieving a oneness.^[1] A monism of goodness would guarantee prosperity since only good can exist, whereas a monism of evil would lead to our extinction.
Evil, in a general context, is the absence or opposite of that which is described as being good. It is driven by fear and manifests through violence and division. The Judeo-Christian belief does not give a human form to Satan as they do God, to reinforce the belief that it shouldn’t manifest itself in humans. Those faithful to God in the Judeo-Christian belief reconcile with the existence of evil by acknowledging that God gave us free will, and since Satan exists, some will be tempted by the Snake with the apple from Adam & Eve. The snake represents a moral code driven by evil, where greatness and prosperity are guaranteed but not the motive, and their actions are a means to some other end that is self-interested. Often, evil is used to denote profound immorality.^[2] In certain religious contexts, evil has been described as a supernatural force.^[2] Definitions of evil vary, as does the analysis of its motives.^[3] However, elements that are commonly associated with evil involve unbalanced behavior involving expediency, selfishness, ignorance, or neglect.^[4]
The modern philosophical questions regarding good and evil are subsumed into three major areas of study: meta-ethics concerning the nature of good and evil, normative ethics concerning how we ought to behave, and applied ethics concerning particular moral issues.^[5]