(5) As long as I am in the world, I am the light of the world.—Better, when I am in the world. The thought is that the two things necessarily co-exist. He is the true Light, and this true Light cannot be in the world without shining in its darkness. (Comp. Note on John 1:5.) The thought is here closely connected with His teaching in the Temple but a short time before (John 8:12, “I am the Light of the world”), and also with the removal of physical and spiritual darkness which immediately followed.

John 9:5. As long as I am in the world — These words show what our Lord meant by the day mentioned in the preceding verse, namely, the time he should be in the world. So long, says he, I am the light of the world — Teaching men inwardly by my Spirit, and outwardly by my preaching, what is the will of God; and showing them by my example how to perform it. “While he continued on earth he was the light of the world by his personal ministry and miracles; and he would be the same by his doctrine and his Spirit to the end of time.” — Scott. And to teach us how able and willing he is to communicate divine illumination to the souls of men, he often restored sight to such as were corporally blind; and he was about to do it now. For, as Dr. Macknight justly observes, “our Lord’s miracles were designed, not only as proofs of his mission, but to be specimens of the power which he possessed as Messiah. For example, by feeding the multitude with meat that perisheth, he signified that he was come to quicken and nourish mankind with the bread of life, that sovereign cordial and salutary nutriment of the soul. His giving sight to the blind was a lively emblem of the efficacy of his doctrine [when accompanied by his grace] to illuminate the blinded understandings of men. His healing their bodies represented his power to heal their souls, and was a specimen of his authority to forgive sins, as it was a real, though but a partial removal of its punishment. His casting out devils was an earnest of his final victory over Satan and all his associates. His raising particular persons from the dead was the beginning of his triumph over death, and a demonstration of his ability to accomplish a general resurrection. And, to give no more examples, his curing all promiscuously, who applied to him, showed that he was come, not to condemn the world, but to save even the chief of sinners. Accordingly, at performing these miracles, or soon after, when the memory of them was fresh in the minds of his hearers, we often find him turning his discourse to spiritual things that were signified by them, as in the case before us.”

9:1-7 Christ cured many who were blind by disease or accident; here he cured one born blind. Thus he showed his power to help in the most desperate cases, and the work of his grace upon the souls of sinners, which gives sight to those blind by nature. This poor man could not see Christ, but Christ saw him. And if we know or apprehend anything of Christ, it is because we were first known of him. Christ says of uncommon calamities, that they are not always to be looked on as special punishments of sin; sometimes they are for the glory of God, and to manifest his works. Our life is our day, in which it concerns us to do the work of the day. We must be busy, and not waste day-time; it will be time to rest when our day is done, for it is but a day. The approach of death should quicken us to improve all our opportunities of doing and getting good. What good we have an opportunity to do, we should do quickly. And he that will never do a good work till there is nothing to be objected against, will leave many a good work for ever undone, Ec 11:4. Christ magnified his power, in making a blind man to see, doing that which one would think more likely to make a seeing man blind. Human reason cannot judge of the Lord's methods; he uses means and instruments that men despise. Those that would be healed by Christ must be ruled by him. He came back from the pool wondering and wondered at; he came seeing. This represents the benefits in attending on ordinances of Christ's appointment; souls go weak, and come away strengthened; go doubting, and come away satisfied; go mourning, and come away rejoicing; go blind, and come away seeing.As long as I am in the world ... - As the sun is the natural light of the world, even while it sinks away to the west, so am I, although my days are drawing to a close, the light of the spiritual world. What a sublime description is this! Jesus occupied the same place, filled the same space, shed his beams as far, in the moral world, as the sun does on natural objects; and as all is dark when that sun sinks to the west, so when he withdraws from the souls of men all is midnight and gloom. When we look on the sun in the firmament or in the west, let us remember that such is the great Sun of Righteousness in regard to our souls; that his shining is as necessary, and his beams as mild and lovely on the soul, as is the shining of the natural sun to illumine the material creation. See the notes at John 1:4. 5. As long as I am in the world, I am the light of the world—not as if He would cease, after that, to be so; but that He must make full proof of His fidelity while His earthly career lasted by displaying His glory. "As before the raising of Lazarus (Joh 11:25), He announces Himself as the Resurrection and the Life, so now He sets Himself forth as the source of the archetypal spiritual light, of which the natural, now about to be conferred, is only a derivation and symbol" [Alford]. Those words, As long as I am in the world, let us know what our Saviour meant by the day, mentioned John 9:4, viz. the time he should be in the world. Saith he, So long as I am in the world, it is a part of my work to show light to the world. Christ indeed, though he hath left the world, is yet the light of the world; but he was the light of the world, that part of the world especially where he was, in a more eminent sense, so long as the world enjoyed his bodily presence in it.

As long as I am in the world,.... Which had been now two or three and thirty years; but was not to be much longer.

I am the light of the world; See Gill on John 8:12. Though doubtless he said this with some view to the cure he was about to perform, it being agreeable to his character and work, while he was in the world.

As long as I am in the world, I am the light of the world.