It must be admitted that these facts are not capable of easy explanation, nor is it strange that they have led the way to unexpected conclusions. We have to face the certainty that, for ages together, the Levitic law was not only a dead letter among the people for whom it was intended, but that its very existence does not seem to have been known. "For long periods," says Professor Robertson, "the people of Israel seem to have been as ignorant of their own religion as the people of Europe were of theirs in the Dark Ages."[312] But the problem, were we to pursue it into its details, is far more perplexing than can be accounted for by the very partial and misleading parallel which Professor Robertson adduces. The parallel would be nearer if, throughout the Dark Ages for a thousand years together, scarcely a single trace were to be found, even under the best popes and the most pious kings, and even in theologic and sacred literature, of so much as the existence of a New Testament, or of any observance of the most distinctive festivals and sacraments of Christianity. And this, as Professor Robertson knows, is infinitely far from being the case. It is true that an argument _ex silentio_ may easily be pushed too far; but we cannot ignore it when it is so striking as this, and when it is also strengthened by so many positive and corroborative facts. A solution of this phenomenon--which becomes most salient in the Book of Kings--is proposed by the criticism which has received the title of "The Higher Criticism," because it is historic and constructive, and rises above purely verbal elements. That solution is that the Pentateuch is not only a composite structure (which all would concede), but that it was written in very different ages, and that much of it is of very late origin. Critics of the latest school believe that it consists of three well-marked and entirely different codes of laws--namely, "the Book of the Covenant" (Exod. xx. 23-xxiii.); the "Deuteronomic Code," first brought into prominence in the reign of Josiah, and written shortly before that reign; and the "Levitical" or "Priestly Code," which comprises most of Exodus, and nearly all Leviticus, and was not introduced till after the Exile. This would be indeed a radical conclusion, and cannot yet be regarded as having been conclusively established. But so remarkable has been the rapidity with which the opinion of religious critics has advanced on the subject, that now even the strongest opponents of this extreme view admit that _the existence of the three separate codes_ has been demonstrated, although they still think that all three may belong to the Mosaic age.[313] It is obvious, however, that this view leaves many of the difficulties entirely untouched. Criticism has not yet spoken her last word upon the subject, but we ought to take her views into account in considering the judgments pronounced by the historian of the Kings. They were judgments which, in their details, though not