True knowledge of God

[Divine revelation] reveals God to the soul, and enables it to apprehend him as he is, and to have a right apprehension of the perfections and glory of the being who is the being of beings, the first and the last. And proportionately, as it discovers him, it gives a right understanding of all other things. He that is ignorant of God, the great fountain and sum of all being, understands nothing aright: he understands nothing as he ought to know. That light that he has is darkness. There is no true knowledge or wisdom where there is no knowledge of God.

Light in a Dark World, a Dark Heart, Works, 19, 725