Moses is not the priest of the people: the priesthood comes in as a ministering body, necessary for religious ends and ideas, but never governing, never even interpreting. It is singular from this point of view that the so-called Priests' Code should be attributed confidently to a caste ambitious of ruling or practically enthroned. Wellhausen ridicules the "fine" distinction between hierocracy and theocracy. He affirms that government of God is the same thing as rule of priest; and he may affirm this because he thinks so. The Book of Numbers, as it stands, might have been written to prove that they are not equivalent; and Wellhausen himself shows that they are not by more than one of his conclusions. The theocracy, he says, is in its nature intimately allied to the Roman Catholic Church, which is, in fact, its child; and on the whole he prefers to speak of the Jewish Church rather than the theocracy. But if any modern religious body is to be named as a child of the Hebrew _theocracy_, it must not be one in which the priest intervenes continually between faith and God. Wellhausen says again that "the sacred constitution of Judaism was an artificial product" as contrasted with the broadly human indigenous element, the real idea of man's relation to God; and when a priesthood, as in later Judaism, becomes the governing body, God is, so far, dethroned. Now Moses did not give to Aaron greater power than he himself possessed, and his own power is constantly represented as exercised in submission to Jehovah. A theocracy might be established without a priesthood; in fact, the mediation of the prophet approaches the ideal far more than that of the priest. But in the beginnings of Israel the priesthood was required, received a subordinate place of its own, to which it was throughout rigidly confined. As for priestly government, that, we may say, has no support anywhere in the Pentateuch.
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The Book of Numbers, called also "In the wilderness," opens with the second month of the second year after the exodus, and goes on to the arrival of the tribes in the plains of Moab by the Jordan. As a whole it may be said to carry out the historical and religious ideas of Exodus and Leviticus: and both the history and the legislation flow into three main channels. They go to establish the separateness of Israel as a people, the separateness of the tribe of Levi and the priesthood, and the separateness and authority of Jehovah. The first of these objects is served by the accounts of the census, of the redemption of the first-born, the laws of national atonement and distinctive dress, and generally the Divine discipline of Israel recorded in the course of the book. The second line of purpose may be traced in the careful enumeration of the Levites; the minute allocation of duties connected with the tabernacle to the Gershonites, the Kohathites, and the Merarites; the special consecration of the Aaronic priesthood; the elaboration of ceremonials requiring priestly service; and various striking incidents, such as the judgment of Korah and his company, and the budding of Aaron's almond twig. Lastly, the institution of some cleansing rites, the sin offering of chap. xix. for example, the details of punishment that fell upon offenders against the law, the precautions enjoined with regard to the ark and the sanctuary, together with the multiplication of sacrifices, went to emphasise the sanctity of worship and the holiness of the unseen King. The book is sacerdotal; it is marked even more by a physical and moral Puritanism, exceedingly stringent at many points.
The whole system of religious observance and priestly ministration set forth in the Mosaic books may seem difficult to account for, not indeed as a national development, but as a moral and religious gain. We are ready to ask how God could in any sense have been the author of a code of laws imposing so many intricate ceremonies, which required a whole tribe of Levites and priests to perform them. Where was the spiritual use that justified the system, as necessary, as wise, as Divine? Inquiries like these will arise in the minds of believing men, and sufficient answer must be sought for.