As, therefore, our understanding is unable of itself to behold God Himself as He is, it knows the Father of the world from the beauty of His works and the comeliness of His creatures. God, therefore, is not to be thought of as being either a body or as existing in a body, but as an uncompounded intellectual nature, admitting within Himself no addition of any kind; so that He cannot be believed to have within him a greater and a less, but is such that He is in all parts Μονάς, and, so to speak, ῾Ενάς, and is the mind and source from which all intellectual nature or mind takes its beginning.
Origen
On First Principles, Book I
Chapter I