Each trait of the glowing description is appropriate to the condition of Israel under Ahaz; but each has a meaning far beyond that limited application. Isaiah may, or may not, have been aware of what' or what time' his words portrayed in their deepest, that is, their true meaning, but if we believe in supernatural prediction which, though it may have found its point of attachment in the circumstances of the present, was none the less the voice of the Spirit of God, we shall not make, as is often done now, the prophet's construction of his words the rule for their interpretation. What the prophecy was discerned to point to by its utterer or his contemporaries, is one thing; quite another is what God meant by it.
First we have the picture of the nation groping in a darkness that might be felt, the emblem of ignorance, sin, and sorrow, and inhabiting a land over which, like a pall, death cast its shadow. On that dismal gloom shines all at once a great light,' the emblem of knowledge, purity, and joy. The daily mercy of the dawn has a gospel in it to a heart that believes in God; for it proclaims the divine will that all who sit in darkness shall be enlightened, and that every night but prepares the way for the freshness and stir of a new morning. The great prophecy of these verses in its indefiniteness goes far beyond its immediate occasion in the state of Judah under Ahaz. As surely as the dawn floods all lands, so surely shall all who walk in darkness see the great light; and wherever is a land of the shadow of death,' there shall the light shine. It is the light of the world.'
Isaiah 9:3 gives another phase of blessing. Israel is conceived of as dwindled in number by deportation and war. But the process of depopulation is arrested and reversed, and numerical increase, which is always a prominent feature in Messianic predictions, is predicted. That increase follows the dawning of the light, for men will flock to the brightness of its rising.' We know that the increase comes from the attractive power of the Cross, drawing men of many tongues to it; and we have a right to bring the interpretation, which the world's history gives, into our understanding of the prophecy. That enlarged nation is to have abounding joy.
Undoubtedly, the rendering To it thou hast increased the joy' is correct, as that of the Authorized Version (based upon the Hebrew text) is clearly one of several cases in which the partial similarity in spelling and identity in sound of the Hebrew words for not' and to it,' have led to a mistaken reading. The joy is described in words which dance and sing, like the gladness of which they tell. The mirth of the harvest-field, when labour is crowned with success, and the sterner joy of the victors as they part the booty, with which mingles the consciousness of foes overcome and dangers averted, are blended in this gladness. We have the joy of reaping a harvest of which we have not sowed the seed. Christ has done that; we have but to enjoy the results of His toil. We have to divide the spoil of a victory which we have not won. He has bound the strong man, and we share the benefits of His overcoming the world.
That last image of conquerors dividing the spoil leads naturally to the picture in verse 4 of emancipation from bondage, as the result of a victory like Gideon's with his handful. Who the Gideon of this new triumph is, the prophet will not yet say. The yoke of his burden' and the rod of his oppressor' recall Egypt and the taskmasters.
Isaiah 9:5 gives the reason for the deliverance of the slaves; namely, the utter destruction of the armour and weapons of their enemy. The Revised Version is right in its rendering, though it may be doubtful whether its margin is not better than its text, since not only are boot' and booted' as probable renderings of the doubtful words as armour' and armed man,' but the picture of the warrior striding into battle with his heavy boots is more graphic than the more generalised description in the Revised Version's text. In any case, the whole accoutrements of the oppressor are heaped into a pile and set on fire; and, as they blaze up, the freed slaves exult in their liberty. The blood-drenched cloaks have been stripped from the corpses and tossed on the heap, and, saturated as they are, they burn. So complete is the victory that even the weapons of the conquered are destroyed. Our conquering King has been manifested, that He might annihilate the powers by which evil holds us bound. His victory is not by halves. He taketh from him all his armour wherein he trusted.'