"There are some who will try to maintain according to God is a body, since they find it written in the book of Moses "Our God is a consuming fire" (DT 4:24) and in the Gospel according to John, "God is Spirit, and they who worship him must worship in spirit and in truth" (Jn 4:24). Now these men will have it that fire and spirit are body and nothing else. But I would ask them what they have to say about this passage of scripture, "God is light," as John says in his epistle, "God is light, and in him is no darkness" (I Jn 1:5). He is that light, surely, which lightens the whole understanding of those who are capable of receiving truth, as it is written in the thirty-fifth psalm, "In thy light shall we see light" CPs 35: 10 [LXX]). For what other light of God can we speak of, in which a man sees light, except God's spiritual power, which when it lightens a man causes him either to see clearly the truth of all things or to know God himself who is called the truth? Such then is the meaning of the saying, "In thy light shall we see light""