Certainly Christians now know that prosperity in material things is by no means God's best gift. That great principle must be held to firmly, as well as the legitimacy of the vivid hopes and fears of Old Testament times regarding the material rewards of right-doing. In many ways the new principle must overrule and modify for us those hopes and fears. But with this limitation we are justified in occupying the Deuteronomic standpoint and in repeating the Deuteronomic warnings. For to its very core the world is God's; and those who find His working everywhere are those whose eyes have been opened to the inmost truth of things.
With regard to the farewell speech contained in chapters xxix. and xxx. and the related parts of chapter iv. and chapter xxxi. there is not much to be said. Taken as a whole, it develops the promises and threats of the previous chapters, and repeats again with affectionate hortatory purpose much of the history. But there is not a great deal that is new; most of the underlying principles of the address have been already dealt with. Taken according to the reconstruction of the speech and its reinsertion in its original framework, the course of things would seem to have been this. After the threats and promises had been concluded, Moses, carrying on the injunction of iii. 28, addressed (chapter xxxii. 8) all the people and appointed Joshua to be his successor; then he wrote out "this law," and produced it before the priests and elders of the people, with the instruction that at the end of every seven years, at the feast of release, in the feast of tabernacles, it should be read before all Israel, men, women, and children (chapter xxxi., w. 9-13). Then he gave the book to the Levites, that they might "lay it up" by the side of the Ark of the Covenant of Yahweh their God, that it might be there for a witness against them when they became unfaithful, as he foresaw they would. He next summons all Israel to him, and delivers the farewell address contained in chapters iv., xxix., and xxx., an outline of which has already been given (p. 438), according to Westphal's recombination. This would seem to indicate that Moses himself inaugurated the custom of reading the law and giving instruction to all the people, which he prescribed for the feast of tabernacles in the year of release. After the law had been given he addressed the whole people in this farewell speech.
But though on the whole there is no need for detailed exposition here, there are one or two things which ought to be noticed, things which express the spirit of Deuteronomy so directly and so sincerely that they can be identified as forming part of the original Deuteronomic speech. One of these is unquestionably xxx. 11-20. At the end of the farewell address a return is made to the core of the whole Deuteronomic teaching: "Thou shalt love Yahweh thy God with all thy heart, and with all thy soul, and with all thy might." This was announced with unique emphasis at the beginning; it has lain behind all the special commands which have been insisted upon since; and now it emerges again into view as the conclusion of the whole matter. For beyond doubt this, and not the whole series of legal precepts, is what is meant by "this commandment" in verse 11. Both before it, in the sixth and tenth verses, and after it, in the sixteenth and twentieth verses, this precept is repeated and insisted on as the Divine command. Had the individual commands or the whole mass of them together been meant, the phrase used would have been different. It would have been that in ver. 10, where they are called "His commandments and His statutes which are written in this book of the law," or something analogous. No, it is the central command of love to God, without which all external obedience is vain, which is the theme of this last great paragraph; and a clear perception of this will carry us through both the obscurities of it, and the difficulties of St. Paul's application of it in the Romans.