2. We have the great fact that the Jewish people, among whom our Lord appeared, and from among whom he chose the primitive preachers of the gospel, possessed a firm and deeply-rooted belief in the unity of God and his infinite perfections. That such a belief was a necessary foundation for the peculiar doctrines of Christianity, all of which are underlaid by that of trinity in unity, is self-evident. Now, this belief was peculiar to the Jews, as contrasted with other nations; and it was held, moreover, not simply by a few philosophers and learned men among them, but by the mass of the people. No other example of a whole nation receiving and holding firmly this fundamental doctrine of religion existed then, or had ever existed; and no adequate explanation of this great fact has ever been given, except that contained in the revelation of God to this people recorded in the Old Testament. It was not by chance, but in accordance with the eternal plan of redemption, that the Messiah appeared where as well as when he did; not in Egypt in the days of Pharaoh, nor in Nineveh, or Babylon, or Greece, or Rome; but among the Jewish people, when now "the fulness of time was come." 3. The impossibility of any attempt to dissever the revelations of the Old Testament from those of the New appears most clearly when we consider the _explicit declarations_ of our Saviour, and after him the apostles, on this point. If we know any thing whatever concerning the doctrines of our Lord Jesus, we know that he constantly taught his disciples that he had come in accordance with the prophecies of the Old Testament. If there were found in his discourses only one or two remote allusions to these prophecies, there would be more show of reason in the favorite hypothesis of rationalists, that the disciples misapprehended their Lord's meaning. But his teachings are so numerous and explicit on this point that, even aside from the inspiration of the writers, such an explanation is not to be thought of for a moment. It was with two of them a matter of personal knowledge that "beginning at Moses and all the prophets, he expounded unto them in all the Scriptures the things concerning himself," Luke 24:27; and with all of them that he said, after his resurrection, in reference to his past teachings: "These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled which were written in the law of Moses, and in the prophets, and in the psalms concerning me." Luke 24:44. That in Christ were fulfilled the prophecies of the Old Testament, appears in every variety of form in the gospel narratives. It constituted, so to speak, the warp into which the Saviour wove his web of daily instruction. Now if a single thread, unlike all the rest in substance and color, had found its way into this warp, we might, perhaps, regard it as foreign and accidental; but to dissever from our Lord's words all his references to the prophecies concerning himself in the Old