"There must come some one who should perfectly satisfy all the demands of the true religion, so as to become the centre from which all its truth and force should operate. His soul must possess a marvelous and surpassing nobleness and divine power, because it is his function perfectly to realize in life the ancient religion, the requirements of which no one has yet satisfied, and that, too, with that spiritual glorification which the great prophets had announced. Unless there first comes some one who shall transfigure this religion into its purest form, it will never be perfected, and its kingdom will never come. But he will and must come, for otherwise the religion which demands him would be false; he is the first true King of the community of the true God, and as nothing can be conceived of as supplanting him, he will reign forever in irresistible power; he is the divine-human King, whose coming had been due ever since the true community had set up a human monarchy in its midst, but who had never come. He is to be looked for, to be longed for, to be prayed for; and how blessed it is simply to expect him devoutly, and to trace out every feature of his likeness. To sketch the nobleness of his soul is to pursue in detail the possibility of perfecting all religion; and to believe in the necessity of his coming is to believe in the perfecting of all divine agency on earth." [Footnote: _The History of Israel_, iv. 203, 204.] It is precisely here that we get at the heart of the Old Testament; this wonderful fore-looking toward the Messianic manifestations of God upon the earth, which kindled the hearts of the people and found clearest utterance by the lips of its most inspired men, which binds this literature all together, histories, songs, precepts, allegories. This it is which reveals the true inspiration of these old writings, and which makes them, to every Christian heart, precious beyond all price. Such being the character of these prophetic books, let us glance for a moment at a few of them, merely for the purpose of locating the prophecy in the history, and of discerning, when it is possible, the providential causes which called it forth.