He is Severely Exercised as to the Origin of Evil
11 And now, O my Helper, had Thou freed me from those fetters; and I inquired, “Whence is evil?” and found no result. But You suffered me not to be carried away from the faith by any fluctuations of thought, whereby I believed You both to exist, and Your substance to be unchangeable, and that You had a care of and would judge men; and that in Christ, Your Son, our Lord, and the Holy Scriptures, which the authority of Your Catholic Church pressed upon me, You had planned the way of man's salvation to that life which is to come after this death.
These things being safe and immoveably settled in my mind, I eagerly inquired, “Whence is evil?” What torments did my travailing heart then endure! What sighs, O my God! Yet even there were Your ears open, and I knew it not; and when in stillness I sought earnestly, those silent contritions of my soul were strong cries unto Your mercy. No man knows, but only Thou, what I endured. For what was that which was thence through my tongue poured into the ears of my most familiar friends?
Did the whole tumult of my soul, for which neither time nor speech was sufficient, reach them? Yet went the whole into Your ears, all of which I bellowed out from the sightings of my heart; and my desire was before You, and the light of my eyes was not with me; for that was within, I without. Nor was that in place, but my attention was directed to things contained in place; but there did I find no resting-place, nor did they receive me in such a way as that I could say, “It is sufficient, it is well;” nor did they let me turn back, where it might be well enough with me.
For to these things was I superior, but inferior to You; and You are my true joy when I am subjected to You, and You had subjected to me what You created beneath me. And this was the true temperature and middle region of my safety, to continue in Your image, and by serving You to have dominion over the body. But when I lifted myself proudly against You, and “ran against the Lord, even on His neck, with the thick bosses” of my buckler, even these inferior things were placed above me, and pressed upon me, and nowhere was there alleviation or breathing space.
They encountered my sight on every side in crowds and troops, and in thought the images of bodies obtruded themselves as I was returning to You, as if they would say unto me, “Where are you going, unworthy and base one?” And these things had sprung forth out of my wound; for you humble the proud like one that is wounded, and through my own swelling was I separated from You; yea, my too much swollen face closed up my eyes.
Source: Confessions (New Advent)