Pantheism is a self-defeating concept, because the concept of a God presupposes a world different from him as an essential correlate. If, on the other hand, the world is supposed to take over his role, then an absolute world without God remains; hence pantheism is only an euphemism for atheism.
pantheismquotes
The origin of wickedness is the cliff upon which theism, just as much as pantheism, is wrecked; for both imply optimism. However, evil and sin, both in their terrible magnitude, cannot be disavowed; indeed, because of the promised punishments for the latter, the former is only further increased. Whence all this, in a world that is either itself a God or the well-intentioned work of a God?