Now this pair of passages, in one of which God lays the work of redemption upon His human agent, and in another Himself puts on its passion and travail, are only one instance of a duality that runs through the whole of the Old Testament. As we repeatedly saw in the prophecies of Isaiah himself,[80] there is a double promise of the future through the Old Testament:--_first_, that God will achieve the salvation of Israel by an extraordinary human personality, who is figured now as a King, now as a Prophet and now as a Priest; but, _second_ also, that God Himself, in undeputed, unshared power, will come visibly to deliver His people and to reign over them. These two lines of prophecy run parallel, and even entangled, through the Old Testament, but within its bounds no attempt is made to reconcile them. They pass from it still separate, to find their synthesis, as we all know, in One of whom each is the incomplete prophecy. While considering the Messianic prophecies of Isaiah, which run upon the first of these two lines, we pointed out, that, though standing in historical connection with Christ, they were not prophecies of His divinity. Lofty and expansive as were the titles they attributed to the Messiah, these titles did not imply more than an earthly ruler of extraordinary power and dignity. But we added that in the other and concurrent line of prophecy, and especially in those well-developed stages of it which appear in Isa. xl.-lxvi., we should find the true Old Testament promise of the Deity in human form and tabernacling among men. We urged that, if the divinity of Christ was to be seen in the Old Testament, we should more naturally find it in the line of promise, which speaks of God Himself descending to battle and to suffer by the side of men, than in the line that lifts a human ruler almost to the right hand of God. We have now come to a passage, which gives us the opportunity of testing this connection, which we have alleged between the so-called anthropomorphism of the Old Testament, and the Incarnation, which is the glory of the New.