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.