Argument for the justification of God, concerned with reconciling God's goodness and justice with the observable facts of evil and suffering in the world. Most such arguments are a necessary component of theism. Under polytheism, the problem is solved by attributing evil to a conflict of wills between deities. The solution is less simple in monotheism, and it can take several forms. In some approaches, the perfect world created by God was spoiled by human disobedience or sin. In others, God withdrew after creating the world, which then fell into decay.