Why does God allow evil to exist - even thrive? This question is one of the major questions of life. It's important. Your answer to it shapes your worldview - your thoughts, your actions, and the things that you say. I've written many posts on theodicy. One of the reasons is that the objections underlying this question are what often what makes people decide to reject God. Here are some answers provided by several scholars and people who have studied and searched for an answer to this question.