341 What God is and has is forever inexhaustible; God is the source of life and the source of all things; no created being can fathom God.
from Postscript to The Word Appears in the Flesh
346 He is well aware of the essence of man, He can reveal all kinds of practices pertaining to all kinds of people. He is even better at revealing human corrupt disposition and rebellious behavior. He does not live among the worldly people, but He is aware of the nature of the mortals and all the corruptions of the worldly people. This is what He is. Though He does not deal with the world, He knows the rules of dealing with the world, because He fully understands human nature. He knows about the Spirit’s work that man’s eyes cannot see and that man’s ears cannot hear, both of today and of the past. This includes wisdom that is not a life philosophy and wonder that people find hard to fathom. This is what He is, made open to people and also hidden from people. What He expresses is not what an extraordinary person is, but the inherent attributes and being of the Spirit. He does not travel around the world but knows everything of it. He contacts the “anthropoids” who have no knowledge or insight, but He expresses words that are higher than knowledge and above great men. He lives among a group of obtuse and numb people who do not have humanity and who do not understand the human conventions and lives, but He can ask mankind to live out normal humanity, at the same time revealing the base and low humanity of mankind. All of this are what He is, higher than what any flesh-and-blood person is.
from “God’s Work and Man’s Work” in The Word Appears in the Flesh