The Problem of Evil in Christian theology involves addresses what appears to be a logical contradiction. If God is an omnipotent, all-knowing, morally perfect being, why does he allow evil to exist in the world? Presumably, He could prevent evil from existing if He wanted to, so why does He allow bad things to happen?
Evil is generally defined as the opposite of good and is commonly associated with harmful events (such as destructive acts of nature) or conscious wrongdoing (via individual or group behavior). Read articles about evil below.
What is evil? Every culture has grappled with defining the term – creating a complex mythology of demons, tricksters and evil spirits in the process. Should evil be used solely for individual or group actions that intentionally cause harm? Or should it also include natural evils like cancer, hurricanes, and volcanic eruptions that cause mass destruction. Does evil exist as a fundamental part of the human psyche or is it enforced by supernatural beings like Satan, demons, etc?