Although a classically conceived God's foreknowledge entails fatalism, Christians generally believe they possess free will. To understand why Christians maintain such incompatible beliefs, research focused on writings by prominent theological and secular scholars that define and describe the relationship between God, foreknowledge, and free will. Critical analysis of this research yielded the hypothesis that free will is illusory, which informed a subsequent review of literature regarding free will. This study finds divine foreknowledge to be a future-fixing conception that remains incompatible with free will. Contrary, compatibilist positions prove fatally flawed. Given a fixed future's existence, only Illusionism—the maintenance of a free will illusion—can preserve humans' personally and socially imperative sense of free choice and action, but not without negative consequences. Ultimately, despite illusion's central and generally positive role, a greater existence awaits humanity upon its evolution beyond Illusionism.