Classical Theism is a philosophical and theological perspective that describes God as a transcendent, unchanging, and all-powerful being. It emphasizes God's absolute simplicity, meaning that God is not composed of parts and is fundamentally different from the created world. This view often aligns with the teachings of major religious traditions, including Christianity, Islam, and Judaism. In Classical Theism, God is also seen as the ultimate cause of everything that exists, sustaining the universe at every moment. This belief includes the idea that God is personal and can engage in relationships with humans, while remaining distinct from creation. Key figures in this tradition include Thomas Aquinas and Augustine of Hippo.