Under these circumstances, it was not merely natural that the author of Deuteronomy should dwell with insistence upon the hortatory part of his book; it was necessary. He could not feel Wellhausen's haste to approach his restatement of the law. To him the exhortation was, in fact, the important thing. Every day he lived he must have seen that it was not want of knowledge that misled his contemporaries. He must have groaned too often under the weight of the indifference even of the well disposed not to be aware that that was the great hindrance to the restoration of the better thoughts and ways of Hezekiah's day.
He had learned by bitter experience, what every man who is in earnest about inducing masses of men to take a step backward or forward to a higher life always learns, that nothing can be accomplished till a fire has been kindled in the hearts of men which will not let them rest. To this task the author of Deuteronomy devotes himself. And whatever impatient theorists of to-day may say, he succeeds amazingly. His exhortation touches men from one end of the world to the other, even to this day, by its affectionate impressiveness. His exhibition of the principles underlying the law is so true that, when our Lord was asked, "Which is the first commandment of all?" He answered from this chapter of Deuteronomy: "The first of all the commandments is this, The Lord our God is one Lord: and thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy strength. The second is this, Thou shalt love thy neighbour as thyself. There is none other commandment greater than these." Now these are precisely the truths Deuteronomy exhibits in these prefatory chapters, and it is by them that the after-treatment of the law is permeated. The author of Deuteronomy by announcing these truths brought the Old Testament faith as near to the level of the New Testament faith as was possible; and we may well believe that he saw his work in its true relative proportions. The hortatory chapters are really the most original part of the book, and exhibit what was most permanent in it. The mere fact that the author lingers over it, therefore, is entirely inadequate to justify us in admitting a later hand. Indeed, if criticism is to retain the respect of reasonable men, it will have to be more sparing than it has hitherto been with the "later hand"; to introduce it here under the circumstances is nothing short of a blunder.
In our verses, therefore, we have to deal with the main point of our book. Coming immediately after the Decalogue, these words render explicit the principle of the first table of that law. In them our author is making it clear that all he has to say of worship, and of the relation of Israel to Yahweh, is merely an application of this principle, or a statement of means by which a life at the level of love to God may be made possible or secured. This section, therefore, forms the bridge which connects the Decalogue with the legal enactments which follow; and it is on all accounts worthy of very special attention. Our Lord's quotation of it as the supreme statement of the Divine law, in its Godward aspect, would in itself be an overwhelmingly special reason for thorough study of it, and would justify us in expecting to find it one of the deepest things in Scripture.
The translation of the first clause presents difficulties. The Authorised Version gives us, "Hear, O Israel: The Lord our God is one Lord," but that can no longer be accepted, since it rests upon the Jewish substitution of Adhonai for Yahweh. Taking this view of the construction, it should be rendered, "Hear, O Israel: Yahweh our God is one Yahweh"; and this is the meaning which most recent authorities--_e.g._ Knobel, Keil, and Dillmann--put upon it. But equally good authorities--such as Ewald and Oehler--render, "Yahweh our God--Yahweh is one." This is unobjectionable grammatically. Still another translation, "Hear, O Israel: Yahweh is our God, Yahweh alone," has been received by the most recent and most scholarly German translation of the Scripture, that edited by Kautzsch. But the objection that in that case _l'bhaddo_, not _'echādh_, should have been used, seems conclusive against it. The two others come very much to the same thing in the end, and were it not for the time at which Deuteronomy was written, Ewald's translations would be the simpler and more acceptable. But the first--"Yahweh our God is one Yahweh"--exactly meets the circumstances of that time, and moreover emphasises that in Israel's God which the writer of Deuteronomy was most anxious to establish. As against the prevailing tendency of the time, he not only denies polytheism, or, as Dillmann puts it, asserts the concrete fact that the true God cannot be resolved in the polytheistic manner into various kinds and shades of deity, like the Baalim, but he also prohibits the amalgamation or partial identification of Him with other gods. Though very little is told us concerning Manasseh's idolatry, we know enough to feel assured that it was in this fashion he justified his introduction of Assyrian deities into the Temple worship. Moloch, for example, must in some way have been identified with Yahweh, since the sacrifices of children in Tophet are declared by Jeremiah to have been to Yahweh. Further, the worship at the High Places had led, doubtless, to belief in a multitude of local Yahwehs, who in some obscure way were yet regarded as one, just as the multitudinous shrines of the Virgin in Romanist lands lead to the adoration of our Lady of Lourdes, our Lady of Étaples, and so on, though the Church knows only one Virgin Mother. This incipient and unconscious polytheism it was our author's purpose to root out by his law of one altar; and it seems congruous, therefore, that he should sum up the first table of the Decalogue in such a way as to bring out its opposition to this great evil. Of course the oneness of deity as such is involved in what he says; but the aspect of this truth which is specially put forward here is that Yahweh, being God, is one Yahweh, with no partners, nor even with variations that practically destroy unity. No proposition could have been framed more precisely and exactly to contradict the general opinion of Manasseh and his followers regarding religion; and in it the watchword of monotheism was spoken. Since it was uttered, this has been the rallying point of monotheistic religion, both among Jews and Mohammedans. For "there is no God but God" is precisely the counterpart of "Yahweh is one Yahweh"; and from one end of the civilised world to the other this strenuous confession of faith has been heard, both as the tumultuous battle-shout of victorious armies, and as the stubborn and immovable assertion of the despised, and scattered, and persecuted people to whom it was first revealed. Even to-day, though in the hands of both Jews and Mohammedans it has been hardened into a dogma which has stripped the Mosaic conception of Yahweh of those elements which gave it possibilities of tenderness and expansion, it still has power over the minds of men. Even in such hands, it incites missionary effort, and it appeals to the heart at some stages of civilisation as no other creed does. It makes men, nay, even civilised men, of the wild fetich-worshipping African; but for want of what follows in our context it leaves them stranded--at a higher level, it is true, but stranded nevertheless--without possibilities of advance, and exposed to that terrible decay in their moral and spiritual conceptions which sooner or later asserts itself in every Mohammedan community.