Continuing with reflections on the first chapter of the Gospel of John in an Augustinian key, here is the paragraph from Augustine’s Sermon 117 that includes the oft-quoted phrase “Si comprehendis, non est deus”:

It is said, “And the Word was God.” We are speaking of God; what marvel, if thou do not comprehend? For if thou comprehend, He is not God. Be there a pious confession of ignorance, rather than a rash profession of knowledge. To reach to God in any measure by the mind, is a great blessedness; but to comprehend Him. is altogether impossible. God is an object for the mind, He is to be understood; a body is for the eyes, it is to be seen. But thinkest thou that thou comprehendest a body by the eye? Thou canst not at all. For whatever thou lookest at, thou dost not see the whole. If thou seest a man’s face, thou dost not see his back at the thee thou seest the face; and when thou seest the back, thou dost not at that thee see the face. Thou dost not then so see, as to comprehend; but when thou seest another part which thou hadst not seen before, unless memory aid thee to remember that thou hast seen that from which thou dost withdraw, thou couldest never say that thou hadst comprehended anything even on the surface. Thou handiest what thou seest, turnest it about on this side and that, or thyself dost go round it to see the whole. In one view then thou canst not see the whole. And as long as thou turnest it about to see it, thou art but seeing the parts; and by putting together that thou hast seen the other parts, thou dost fancy that thou seest the whole. But this must not be understood as the sight of the eyes, but the activity of the memory. What then can be said, Brethren, of that Word? Lo, of the bodies which are before our eyes we say they cannot comprehend them by a glance; what eye of the heart then comprehendeth God? Enough that it reach to Him if the eye be pure. But if it reach, it reacheth by a sort of incorporeal and spiritual touch, yet it doth not comprehend; and that, only if it be pure. And a man is made blessed by touching with the heart That which ever abideth Blessed; and that is this Very Everlasting Blessedness, and that Everlasting Life, whereby man is made to live; that Perfect Wisdom, whereby man is made wise; that Everlasting Light, whereby man becomes enlightened. And see how by this touch thou art made what thou wast not, thou dost not make that thou touchest be what it was not before. I repeat it, there grows no increase to God from them that know Him, but to them that know Him, from the knowledge of God. Let us not suppose, dearly beloved Brethren, that we confer any benefit on God, because I have said that we give Him in a manner a price. For we do not give Him aught whereby He can be increased, Who when thou fallest away, is Entire, and when thou returnest, abideth Entire, ready to make Himself seen that He may bless those who turn to Him, and punish those with blindness who turn away. For by this blindness, as the beginning of punishment, doth He first execute vengeance on the soul that turns away from Him. For whoso turns away from the True Light, that is from God, is at once made blind. He is not yet sensible of his punishment, but he hath it already.

There are many insights in this passage that one can reflect on (including the limits of insights!). At this moment, one that stands out to me is less about the limits of knowledge of God, but rather the limits even of corporeal vision without memory. Somewhere in between is comprehension of something like a law that begins at a moment in time and continues in force through multiple generations, though always subject to stopping to exist as law.