From An Essay in aid of a Grammar of Assent
by Venerable John Henry Newman, C.O.
"Break a ray of light into its constituent colours, each is beautiful, each may be enjoyed; attempt to unite them, and perhaps you produce only a dirty white. The pure and indivisible Light is seen only by the blessed inhabitants of heaven; here we have but such faint reflections of it as its diffraction supplies; but they are sufficient for faith and devotion. Attempt to combine them into one, and you gain nothing but a mystery, which you can describe as a notion, but cannot depict as an imagination. And this, which holds of the Divine Attributes, holds also of the Holy Trinity in Unity. And hence, perhaps, it is that the latter doctrine is never spoken of as a Mystery in the sacred book, which is addressed far more to the imagination and affections than to the intellect. Hence, too, what is more remarkable, in the Creeds the dogma is not called a mystery; not in the Apostles' nor the Nicene, nor even in the Athanasian. The reason seems to be, that the Creeds have a place in the Ritual; they are devotional acts, and of the nature of prayers, addressed to God; and, in such addresses, to speak of intellectual difficulties would be out of place. It must be recollected especially that the Athanasian Creed has sometimes been called the 'Psalmus Quicunque.' It is not a mere collection of notions, however momentous. It is a psalm or hymn of praise, of confession, and of profound, self-prostrating homage, parallel to the canticles of the elect in the Apocalypse. It appeals to the imagination quite as much as to the intellect. It is the war-song of faith, with which we warn, first ourselves, then each other, and then all those who are within its hearing, and the hearing of the Truth, who our God is, and how we must worship Him, and how vast our responsibility will be, if we know what to believe, and yet believe not."