CTA ~ John 8 v12

12. Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.

ALCUIN. Having absolved the woman from her sin, lest some should doubt, seeing that He was really man, His power to forgive sins, He deigns to give further disclosure of His divine nature; Then spake Jesus again unto them, saying, I am the Light of the world.

BEDE. Where it is to be observed, He does not say, I am the light of Angels, or of heaven, but the Light of the world, i. e. of mankind who live in darkness, as we read, To give light to them that sit in darkness, and in the shadow of death. (Luke 1:79)

CHRYSOSTOM. (Hom. lii. 2) As they had brought Galilee as an objection against Him, and doubted His being one of the Prophets, as if that was all He claimed to be, He wished to shew that He was not one of the Prophets, but the Lord of the whole earth: Then spake Jesus again unto them, saying, I am the Light of the world: not of Galilee, or of Palestine, or of Judæa.

AUGUSTINE. (Tract. xxxiv. 2) The Manichæans suppose the sun of the natural world to be our Lord Christ; but the Catholic Church reprobates such a notion; for our Lord Christ was not made the sun, but the sun was made by Him: inasmuch as all things were made by Him. (c. 1:3) And for our sake did He come to be under the sun, being the light which made the sun: He hid Himself under the cloud of the flesh, not to obscure, but to temper His light. Speaking then through the cloud of the flesh, the Light unfailing, the Light of wisdom says to men, I am the Light of the world.

THEOPHYLACT. You may bring these words against Nestorius: for our Lord does not say, In Me is the light of the world, but, I am the Light of the world: He who appeared man, was both the Son of God, and the Light of the world; not, as Nestorius fondly holds, the Son of God dwelling in a mere man.

AUGUSTINE. (Tract. xxxiv. s. 5) He withdraws you however from the eyes of the flesh, to those of the heart, in that He adds, He that followeth Me shall not walk in darkness, but shall have the light of life. He thinks it not enough to say, shall have light, but adds, of life. These words of our Lord agree with those of the Psalm, In Thy light shall we see light; for with Thee is the well of life. (Ps. 35) For bodily uses, light is one thing, and a well another; and a well ministers to the mouth, light to the eyes. With God the light and the well are the same. He who shines upon thee, that thou mayest see Him, the Same flows unto thee, that thou mayest drink Him. What He promises is put in the future tense; what we ought to do in the present. He that followeth Me, He says, shall have; i. e. by faith now, in sight hereafter. The visible sun accompanieth thee, only if thou goest westward, whither it goeth also; and even if thou follow it, it will forsake thee, at its setting. Thy God is every where wholly; He will not fall from thee, if thou fall not from Him. Darkness is to be feared, not that of the eyes, but that of the mind; and if of the eyes, of the inner not the outer eyes; not those by which white and black, but those by which just and unjust, are discerned.

CHRYSOSTOM. (Hom. lii. 2) Walketh not in darkness, i. e. spiritually abideth not in error. Here He tacitly praises Nicodemus and the officers, and censures those who had plotted against Him; as being in darkness and error, and unable to come to the light.