Who wrote the book of Deuteronomy? Who was the author of Deuteronomy?

Deuteronomy is the last book of the Pentateuch (Greek for "Fivebook") or of the Thora (Hebrew word for "law"). The unity of the Pentateuch and the Mosaic authorship have often been denied since the 19th century. Criticism has especially focused on the book of Deuteronomy. Some have claimed it was written only at the time of Josiah, or even later.

Starting from 2 Timothy 3:16: "All scripture is given by inspiration of God" we can see in the Old as well as in the New Testament that Moses is considered to be the author of Deuteronomy and therefore the time of writing is confirmed. In Deuteronomy 31:9 and 24-26 it is testified that Moses wrote the book and that he gave it to the Levites to keep it. In Joshua 8:32-35 explicit reference is made to Deuteronomy 27:8-12 as "all that Moses the servant of the Lord had commanded before". While mentioning the law of Moses (Thora) in 2 Chron. 34:14 and Neh. 8:1 the book of Deuteronomy is included as well.

Three major divisions will be helpful, In our study of this book. The first, ending with Chapter 4:43, is a resume of Israel's history. The second, from Chapter 4:44 to Chapter 30:20, is an explanation and expansion of the laws previously given to Israel. The third (Chapter 31 to the end) is mainly prophetic, though chapter 34 is necessarily added by a different writer, for it records the death of Moses. It may have been Joshua or Eleazar the high priest who wrote this, but we have no need to know.

Not only is Moses the writer of Deuteronomy, but he gives the record of what he spoke to Israel in this book. The instruction is not addressed to the priests as much of Leviticus is, and some of Numbers also, but to all Israel. for in the summing up of our history each of us individually must give account of himself to God (Rom.14:12), therefore each is responsible to take to heart the truth God gives in His Word for our welfare in our earthly history.

When the Pentateuch was completed Moses directed it to be placed in the side of the Ark (Deut. 31:24, 26). Was this the identical copy of the law found by Hilkiah the high priest seven hundred and fifty years afterwards, amongst the rubbish in the Temple (2 Kings 22:8); or was it a copy transcribed from the original by one of the early kings (Deut. 17:18)? We believe it was the very copy of the law or Pentateuch written by the hand of Moses (2 Chron. 34:14). That Moses was the writer of these five inspired records is evident from the testimony of the books themselves (Deut. 31:9, 24), by Joshua (Joshua 1:7), by Samuel (1 Sam. 12:6-8), by David (1 Kings 2:3), by Solomon (1 Kings 8:53, 56), by Jehovah (2 Kings 21:8), by Josiah (2 Kings 23:2-3, 25) by Jehoiada (2 Chron. 23:16-18), by Hezekiah (2 Chron. 30:16), by Ezra (Ezra 7:6), by Nehemiah (Neh. 13:1), by Daniel (Dan. 9:11-13), by Malachi (Mal. 4:4), by Christ (John 5:45-47), by Peter (Acts 3:22-26), by Stephen (Acts 7), by Paul (1 Cor. 9:9), by all the Jewish writers, ancient and modern, and by the Jewish nation in all ages, by apostates as Mahomet and Julian, by heathen writers as Longinus and Tacitus. Yet in the face of this overwhelming testimony, Divine, Christian, Jewish, and Heathen, men will be found bold enough and bad enough to impugn the authority of the Pentateuch, and deny, too, its Mosaic authorship!

The law, which Moses had written was next delivered unto the Levites. "Moses wrote this law." Could there be a more emphatic statement than this! And this declaration that Moses wrote this law is confirmed by our Lord, the same Lord who spoke to Moses and whose words and laws Moses committed to writing. The denial of the Mosaic authorship includes the denial of the infallibility of the Son of God. It is infidelity. The infidels of the past ridiculed the teaching that Moses wrote the five books of the law. The infidels of Christendom do now the same. And this law was to be read before all Israel at the feast of tabernacles. They were to be dependent upon the Word of God and learn, fear, and obey by reading and hearing it. Our dependence is the same. Apart from believing and obeying the Word, spiritual life, walking in the Spirit, in fellowship with God, is impossible.

Moses was the author of all these books, the single author. At their close we see him laying down his life with his pen in token of a completed work. We shall find as we go on in the study of Scripture, that this Pentateuch as it is called, (which simply means five volumes) gives us the model upon which the whole word of God is written, a key by which we can understand something of His purpose in giving us such a full revelation. I have said that they are one whole that you could not take one of them away without mutilating the rest.

If we believe the book (and he is God's enemy who does not), Moses spoke and wrote on the eve of his approaching death. This could not but impart a peculiarly earnest and solemn tone. Ethic, affectionate, and expostulatory elements predominate beyond what we find in any other of the five books. As Moses says, in closing the brief preface of Deut. 1:3-5, he began to declare or expound this law. Obedience is urged continually, and the spirit of it in the heart. It is the people as a whole therefore, who are in general addressed directly throughout, on their responsible tenure of the land. Typical teaching is comparatively rare, moral abounds, not without prophecy at the close especially. "The priests, the Levites" only appear for specific reasons, and Levites also as such. But the people are regarded as under the moral government of Jehovah their God in the land; and this accounts for its characteristics. Those born in the wilderness had been uncircumcised, and so disqualified for the privileges of Israel. This was no longer to be tolerated. Israel must henceforth take their normal place of obedience in Jehovah's land. So the book urges anticipatively.

Deuteronomy closes the law, and is so self-evidently Mosaic with its personal pathos, that one may wonder that any man of spiritual perception could fail to recognise that none but the saintly legislator could have written it, as he intimates himself with death immediately in view, yet with undismayed spirit, and natural force unabated, and all his profound affections for Israel just about to enter the land of promise from which he was debarred. This and more necessarily gave a peculiar solemnity, adapted to the new generation who had not personally shared the departure from Egypt, the law imposed at Sinai, and but little of God's discipline through the wilderness, which form its wondrous rehearsal for instruction, encouragement, and warning, quite unexampled in the O.T.

A. If intelligent usage be allowed to decide, the former is correct; and etymology also favours the word so formed from the Greek. It means a second edition or repetition of the law, being the title of the fifth book of Moses given by the Septuagint translators. The Jews as usual designate each book by the opening Hebrew words. It may be added that there is no real ground to doubt, save in the unbridled fancy of rationalists, that it was (save the last chapter or at least its last part) written, as it professes to be, by Moses. As to its scope and contents, Deuteronomy presents a practical direction in the spirit of prophecy for life in the land, given from the east of Jordan, and looking onward to the final restoration of Israel after captivity, "the secret things" of grace after total failure under law. The books of the law, as in Exodus, Leviticus, and Numbers were rather an abstract system of types, only in part reduced to practice, with the facts even selected as types also. Hence in Deuteronomy the typical institution has no practical character as compared with those elsewhere. And, as has been remarked, it is the book, and the only one, which our Lord quoted in reply to Satan's temptation. So also it is the book which the apostle applied to the righteousness of faith in the gospel as contrasted with that of the law. All this, and a great deal more of spiritual interest, contribute to pour scorn on the scorners who vie with one another in striving to make it out a forgery or religious romance composed not earlier than the days of Josiah. Inspiration accounts for its salient properties, as it does for each of the books that preceded, all written by Moses, but in a wisdom of the Spirit beyond his who was the instrument of the Holy Spirit.

No believer would refuse to the Pentateuch what he owns unhesitatingly in the Psalter, if there were similar grounds of faith. But the declarations of God are clearly and expressly opposed to any such conclusion, and the internal structure of the law too has nothing in common with that of the Psalms, but to my mind falls in so simply and naturally with the single authorship of Moses, that the real difficulty would have been to have supposed more than one if the question otherwise had been absolutely open. If the Lord and the apostles had not corroborated irrefragably the Mosaic authorship, both the style and the line of inspired Jewish witnesses, not to speak of the evident claim of Moses to all implied in Deuteronomy, would point to this conclusion.

No believer would refuse to the Pentateuch what he owns unhesitatingly in the Psalter, if there were similar grounds of faith. But the declarations of God are clearly and expressly opposed to any such conclusion, and the internal structure of the law too has nothing in common with that of the Psalms, but to my mind falls in so simply and naturally with the single authorship of Moses, that the real difficulty would have been to have supposed more than one if the question otherwise had been absolutely open. If the Lord and the apostles had not corroborated irrefragably the Mosaic authorship, both the style and the line of inspired Jewish witnesses, not to speak of the evident claim of Moses to all implied in Deuteronomy, would point to this conclusion.