To first talk about what god can or cannot do, we should probably define what god is. Once we do that, as a society, as a world, then and only then can we even discuss god. Until then, it's a concept that's ultimately pointless to talk about, in many ways.
If you're frightened of dying, and you're holding on, you'll see devils tearing your life away. But if you've made your peace, then the devils are really angels, freeing you from the Earth.