'Jesus therefore said unto them, Yet a little while is the light among you. Walk while ye have the light, that darkness overtake you not: and he that walketh in the darkness knoweth not whither he goeth. While ye have the light, believe on the light, that ye may become sons of light.'—JOHN xii. 35,36 (R.V.).
These are the last words of our Lord's public ministry. He afterwards spoke only to His followers in the sweet seclusion of the sympathetic home at Bethany, and amid the sanctities of the upper chamber. 'Yet a little while am I with you';—the sun had all but set. Two days more, and the Cross was reared on Calvary, but there was yet time to turn to the light. And so His divine charity 'hoped all things,' and continued to plead with those who had so long rejected Him. As befits a last appeal, the words unveil the heart of Christ. They are solemn with warning, radiant with promise, almost beseeching in their earnestness. He loves too well not to warn, but He will not leave the bitterness of threatening as a last savour on the palate, and so the lips, into which grace is poured, bade farewell to His enemies with the promise and the hope that even they may become 'the sons of light.'
The solemnity of the occasion, then, gives great force to the words; and the remembrance of it sets us on the right track for estimating their significance. Let us see what lessons for us there may be in Christ's last words to the world.
I. There is, first, a self-revelation.
It is no mere grammatical pedantry that draws attention to the fact that four times in this text does our Lord employ the definite article, and speak of 'the light.' And that that is no mere accident is obvious from the fact that, in the last clause of our text, where the general idea of light is all that is meant to be emphatic, the article is omitted. 'Yet a little while is _the_ light with you; walk while ye have _the_ light…. While ye have _the_ light, believe in _the_ light, that ye may be the children of light.'
So then, most distinctly here, in His final appeal to the world, He draws back the curtain, as it were, takes away the shade that had covered the lamp, and lets one full beam stream out for the last impression that He leaves. Is it not profoundly significant and impressive that then, of all times, over and over again, in the compass of these short verses, this Galilean peasant makes the tremendous assertion that He is what none other can be, in a solitary and transcendent sense, _the_ Light of Mankind? Undismayed by universal rejection, unfaltering in spite of the curling lips of incredulity and scorn, unbroken by the near approach of certain martyrdom, He presents Himself before the world as its Light. Nothing in the history of mad, fanatical claims to inspiration and divine authority is to be compared with these assertions of our Lord. He is the fontal Source, He says, of all illumination; He stands before the whole race, and claims to be 'the Master-Light of all our seeing.' Whatsoever ideas of clearness of knowledge, of rapture of joy, of whiteness of purity, are symbolised by that great emblem, He declares that He manifests them all to men. Others may shine; but they are, as He said, 'lights kindled,' and therefore 'burning.' Others may shine, but they have caught their radiance from Him. All teachers, all helpers, all thinkers draw their inspiration, if they have any, from Him, in whom was life, and the Life was the Light of men.
There has been blazing in the heavens of late a new star, that burst upon astonished astronomers in a void spot; but its brilliancy, though far transcending that of our sun, soon began to wane, and before long, apparently, there will be blackness again where there was blackness before. So all lights but His are temporary as well as derived, and men 'willing for a season to rejoice' in the fleeting splendours, and to listen to the teacher of a day, lose the illumination of his presence and guidance of his thoughts as the ages roll on. But _the_ Light is 'not for an age, but for all time.'