Then Jesus said unto them,
Yet a little while is the light with you. Walk while you have the light, lest darkness come upon you: for he that walks in darkness knows not where he goes.
All Commentaries on John 12:35 Go To John 12
Cornelius a Lapide
AD 1637
Jesus therefore said unto them, Yet a little while is the Light with you, &c. "Christ would not answer their objections directly, as knowing that they deserved not a reply" says S. Cyril. He therefore answers indirectly, that they should use Him as a light; for that that light would be soon extinguished by death, when they would have to seek for Him in vain. But if they desired to use that light they would be enlightened by it, so as to find an answer to their objection, and know other things which were necessary for their salvation. The Latin commentators take the word "modicum" as referring to the light, thus, "a little light." Ye have but little light in thinking that Christ will abide for ever. But ye know not that He will also die and rise again. Walk therefore while ye have the light. Go on to investigate the truth. Ye will then learn how Christ will die, and yet rise again, and abide for ever. (So S. Augustine, S. Bernard, Serm. xlix. in Song Lyra, and others). But the word "modicum" does not refer to the light, but to the word "time" as is plain in the Greek. He calls Himself the light of the world, for the reasons which are mentioned in notes to chap. i, and also 1 John 1:5.
(1.) S. Chrysostom and Theophylact think that Christ here likened Himself to the Light, or Sun, because as the light of the sun is not extinguished by night, but is only hid for awhile, and rises again in the morning, and shines throughout the day, so He would die and rise again, and reign for ever, which was the very thing the Jews were inquiring about.
(2.) It may be explained more clearly and to the point in this way,—1 , Christ, the Light of the world, enlightening it with the doctrine and knowledge of God, of salvation and of things eternal, shall be but a short time (only three days) with you in the body. And, therefore, if ye are wise, as long as you have Me with you, embrace and follow this light, believe in Me, hearken unto Me, question Me, I will resolve all your doubts, especially how Christ will die, and yet abide for ever. But if ye do it not now, the light will shortly be taken from you. I shall soon die, and then the darkness of error will overwhelm you. For though I shall leave the Apostles after Me, to carry on the light of the Gospel which I brought: yet ye will not value them, and will persecute them, and then ye will in vain seek for Me, who am the very source of light. Just as He spake to the same Jews, John 7:33.
Christ calls Himself the Light. Wherefore S. Chrysostom, Theophylact, and Rupertus less appropriately understand by the light, the life of each faithful Christian, which is as it were to each one his own day. Believe in Me while the light of life lasts, for after it comes the darkness of death, when ye will not be able to believe, and do what is right.
Symbolically. Leontius by darkness understands sins; Rupertus, the sufferings of the lost in outer darkness.