I have found it necessary to devote more space to critical questions than in the previous volume. Chs. xl.-lxvi. approach more nearly to a unity than chs. i.-xxxix.: with very few exceptions they lie in chronological order. But they are not nearly so clearly divided and grouped: their connection cannot be so briefly or so lucidly explained. The form of the prophecy is dramatic, but the scenes and the speakers are not definitely marked off. In spite of the chronological advance, which we shall be able to trace, there are no clear stages--not even, as we shall see, at those points at which most expositors divide the prophecy, the end of ch. xlix. and of ch. lviii. The prophet pursues simultaneously several lines of thought; and though the close of some of these and the rise of others may be marked to a verse, his frequent passages from one to another are often almost imperceptible. He everywhere requires a more continuous translation, a closer and more elaborate exegesis, than were necessary for Isaiah i.-xxxix. In order to effect some general arrangement and division of Isa. xl.-lxvi. it is necessary to keep in view that the immediate problem which the prophet had before him was twofold. It was political, and it was spiritual. There was, first of all, the deliverance of Israel from Babylon, according to the ancient promises of Jehovah: to this were attached such questions as Jehovah's omnipotence, faithfulness and grace; the meaning of Cyrus; the condition of the Babylonian Empire. But after their political deliverance from Babylon was assured, there remained the really larger problem of Israel's spiritual readiness for the freedom and the destiny to which God was to lead them through the opened gates of their prison-house: to this were attached such questions as the original calling and mission of Israel; the mixed and paradoxical character of the people; their need of a Servant from the Lord, since they themselves had failed to be His Servant; the coming of this Servant, his methods and results. This twofold division of the prophet's problem will not, it is true, strike his prophecy into separate and distinct groups of chapters. He who attempts such a division simply does not understand "Second Isaiah." But it will make clear to us the different currents of the sacred argument, which flow sometimes through and through one another, and sometimes singly and in succession; and it will give us a plan for grouping the twenty-seven chapters very nearly, if not quite, in the order in which they lie.