“The truthfulness which Jesus demands from his followers is the self-abnegation which does not hide sin. Nothing is then hidden, everything is brought forth to the light of day. In this question of truthfulness, what matters first and last is that a man’s whole being should be exposed, his whole evil laid bare in the sight of God. But sinful men do not like this sort of truthfulness.”

Source: Guide for the Perplexed (c. 1190), Part III, Ch.21
Context: He fully knows His unchangeable essence, and has thus a knowledge of all that results from any of His acts. If we were to try to understand in what manner this is done, it would be the same as if we tried to be the same as God, and to make our knowledge identical with His knowledge. Those who seek the truth, and admit what is true, must believe that nothing is hidden from God; that everything is revealed to His knowledge, which is identical with His essence; that this kind of knowledge cannot be comprehended by us; for if we knew its method, we would possess that intellect by which such knowledge could be acquired.... Note this well, for I think that this is an excellent idea, and leads to correct views; no error will be found in it; no dialectical argument; it does not lead to any absurd conclusion, nor to ascribing any defect to God. These sublime and profound themes admit of no proof whatever... In all questions that cannot be demonstrated, we must adopt the method which we have adopted in this question about God's Omniscience. Note it.

Source: Paul Faber, Surgeon (1879), Ch. 31 : A Conscience
Context: God hides nothing. His very work from the beginning is revelation, — a casting aside of veil after veil, a showing unto men of truth after truth. On and on, from fact to fact divine he advances, until at length in his Son Jesus he unveils his very face. Then begins a fresh unveiling, for the very work of the Father is the work the Son himself has to do, — to reveal. His life was the unveiling of himself, and the unveiling of the Son is still going on, and is that for the sake of which the world exists. When he is unveiled, that is, when we know the Son, we shall know the Father also. The whole of creation, its growth, its history, the gathering total of human existence, is an unveiling of the Father. He is the life, the eternal life, the Only. I see it — ah! believe me — I see it as I cannot say it. From month to month it grows upon me. The lovely home-light, the one essence of peaceful being, is God himself.
He loves light and not darkness, therefore shines, therefore reveals. True, there are infinite gulfs in him, into which our small vision cannot pierce, but they are gulfs of light, and the truths there are invisible only through excess of their own clarity. There is a darkness that comes of effulgence, and the most veiling of all veils is the light. That for which the eye exists is light, but through light no human eye can pierce. — I find myself beyond my depth. I am ever beyond my depth, afloat in an infinite sea; but the depth of the sea knows me, for the ocean of my being is God. — What I would say is this, that the light is not blinding because God would hide, but because the truth is too glorious for our vision. The effulgence of himself God veiled that he might unveil it — in his Son. Inter-universal spaces, icons, eternities — what word of vastness you can find or choose — take unfathomable darkness itself, if you will, to express the infinitude of God, that original splendor existing only to the consciousness of God himself — I say he hides it not, but is revealing it ever, for ever, at all cost of labor, yea of pain to himself. His whole creation is a sacrificing of himself to the being and well-being of his little ones, that, being wrought out at last into partakers of his divine nature, that nature may be revealed in them to their divinest bliss. He brings hidden things out of the light of his own being into the light of ours.
But see how different we are, — until we learn of him! See the tendency of man to conceal his treasures, to claim even truth as his own by discovery, to hide it and be proud of it, gloating over that which he thinks he has in himself, instead of groaning after the infinite of God! We would be forever heaping together possessions, dragging things into the cave of our finitude, our individual self, not perceiving that the things which pass that dreariest of doors, whatever they may have been, are thenceforth "but straws, small sticks, and dust of the floor." When a man would have a truth in thither as if it were of private interpretation, he drags in only the bag which the truth, remaining outside, has burst and left.

Source: Mysteries Of John (1946)

From 1980s onwards, Only Integrity is Going to Count (1983)

Source: Writings: Autobiography/Notes on the State of Virginia/Public & Private Papers/Addresses/Letters

"The Student Life" in The Medical News (30 September 1905).

XVII, 4
The Kitáb-I-Asmá

Preface, p. 21, sentence 7.
The Christian Agnostic (1965)

This is from a summary of Johnsons ideas on the "Wedge strategy" which appeared in "Missionary Man" by Rob Boston in Church and State Magazine (April 1999) http://web.archive.org/web/20010508032051/http://www.au.org/churchstate/cs4995.htm, and not a direct quote. See also "Bad Philip Johnson Quote" at Panda's Thumb http://pandasthumb.org/archives/2006/02/post-4.html
Misattributed