45. There we shall see the truth without any difficulty, and shall enjoy it to the full, most clear and most certain. Nor shall we be inquiring into anything by a mind that reasons, but shall discern by a mind that contemplates, why the Holy Spirit is not a Son, although He proceeds from the Father. In that light there will be no place for inquiry: but here, by experience itself it has appeared to me so difficult,—as beyond doubt it will likewise appear to them also who shall carefully and intelligently read what I have written,—that although in the second book I promised that I would speak thereof in another place, yet as often as I have desired to illustrate it by the creaturely image of it which we ourselves are, so often, let my meaning be of what sort it might, did adequate utterance entirely fail me; nay, even in my very meaning I felt that I had attained to endeavor rather than accomplishment. I had indeed found in one person, such as is a man, an image of that Highest Trinity, and had desired, especially in the ninth book, to illustrate and render more intelligible the relation of the Three Persons by that which is subject to time and change. But three things belonging to one person cannot suit those Three Persons, as man’s purpose demands; and this we have demonstrated in this fifteenth book.
Complete source paragraph · On the Holy Trinity, Chapter 25.—The Question Why the Holy Spirit is Not Begotten, and How He Proceeds from the Father and the Son, Will Only Be Understood When We are in Bliss.; original source section: Chapter 25, source paragraph 3 · Original source