Deuteronomy
Name and Nature of the Book
The English name "Deuteronomy" comes from the Greek word meaning "second law," based on the Septuagint's translation of Deuteronomy 17:18. The Hebrew title is simply "These are the words," taken from the book's opening phrase. While "second law" is technically a mistranslation (the Hebrew phrase means "a copy of this law"), it captures something true about the book: Deuteronomy is indeed a restatement and expansion of the law given at Sinai, delivered in a new context for a new generation.
Unlike the earlier books of the Pentateuch where God speaks to Moses, in Deuteronomy Moses speaks to Israel at God's command (Deuteronomy 1:1-5; 5:1). The book is essentially a series of sermons, passionate and personal, urging the Israelites to remember what God has done and to remain faithful as they enter the land of promise. It has been called a manual of covenant loyalty, combining legal instruction with prophetic exhortation.
Structure and Content
Deuteronomy is organized around three major discourses, followed by several appendices:
The first discourse (chapters 1-4) reviews Israel's journey from Horeb (Sinai) to Moab, recounting God's provision and Israel's failures. Moses uses this history to urge the people toward faithfulness and to warn against idolatry (Deuteronomy 4:1-40).
The second discourse (chapters 5-26) forms the heart of the book. It begins with the Ten Commandments (Deuteronomy 5:6-21) and the great commandment: "Hear, O Israel: The Lord our God, the Lord is one. You shall love the Lord your God with all your heart and with all your soul and with all your might" (Deuteronomy 6:4-5). This section then presents detailed laws governing worship, justice, family life, warfare, and social welfare, all flowing from the central command to love God.
The third discourse (chapters 27-30) presents the covenant blessings and curses. Obedience would bring blessing in every sphere of life (Deuteronomy 28:1-14), while disobedience would bring devastating consequences, including exile from the land (Deuteronomy 28:15-68). The section concludes with Moses' dramatic appeal: "I have set before you life and death, blessing and curse. Therefore choose life" (Deuteronomy 30:19).
The book ends with Moses' final song (chapter 32), his blessing of the tribes (chapter 33), and the account of his death on Mount Nebo (chapter 34).
Key Themes
Several themes run throughout Deuteronomy. The most prominent is the call to love God with complete devotion. The Shema (Deuteronomy 6:4-5) became the foundational creed of Judaism and was identified by Jesus as the greatest commandment (Matthew 22:37). Parents were to teach God's commands diligently to their children, speaking of them constantly (Deuteronomy 6:6-9).
Another major theme is remembrance. Moses repeatedly urges Israel to remember God's mighty acts of deliverance and provision (Deuteronomy 8:2-4, 11-18). Forgetting God's faithfulness leads inevitably to spiritual decline and idolatry.
Deuteronomy also emphasizes the centralization of worship at a place God would choose (Deuteronomy 12:5-7), the care for the vulnerable, including widows, orphans, and foreigners (Deuteronomy 10:18-19; 24:17-21), and the expectation of a coming prophet like Moses whom God would raise up (Deuteronomy 18:15-18).
Deuteronomy in the Rest of Scripture
Deuteronomy's influence on the rest of Scripture is immense. The historical books of Joshua through Kings are often called the "Deuteronomistic History" because they evaluate Israel's kings and events by the standards set in Deuteronomy. Josiah's great reform was sparked by the discovery of "the Book of the Law" in the temple, widely identified with Deuteronomy or a portion of it (2 Kings 22:8-13).
Jesus quoted Deuteronomy more than almost any other Old Testament book. When tempted by Satan in the wilderness, all three of His responses came from Deuteronomy (Matthew 4:4, 7, 10, quoting Deuteronomy 8:3; 6:16; 6:13). He identified Deuteronomy 6:5 as the greatest commandment (Matthew 22:37). The apostle Paul also drew heavily on Deuteronomy, particularly in Romans 10:6-8 (quoting Deuteronomy 30:12-14).
The Covenant and Its Lasting Significance
Deuteronomy presents the relationship between God and Israel as a covenant, a solemn agreement with obligations and consequences. The structure of the book itself resembles ancient Near Eastern treaty forms, particularly the suzerainty treaties between great kings and their vassals. This structure includes a historical prologue, stipulations, blessings and curses, and provisions for the treaty's deposit and periodic reading.
The covenant theology of Deuteronomy provides the foundation for understanding the New Covenant announced by Jeremiah (Jeremiah 31:31-34), which Jesus inaugurated at the Last Supper (Luke 22:20). What the old covenant demanded but Israel could not achieve through outward obedience, the new covenant accomplishes through the transformation of the heart by the Holy Spirit, fulfilling Moses' own hope that God would "circumcise your heart... so that you will love the Lord your God with all your heart and with all your soul" (Deuteronomy 30:6).
Biblical Context
Deuteronomy concludes the Pentateuch and bridges the gap between the wilderness wanderings and the conquest of Canaan. It is quoted or alluded to throughout the Old Testament historical books, the prophets, and the Psalms. Jesus quoted it extensively (Matthew 4:4, 7, 10; 22:37), and the apostles drew on it in their teaching (Acts 3:22; Romans 10:6-8; Galatians 3:10-13). Its themes of covenant faithfulness, love for God, and care for the vulnerable echo throughout the entire biblical canon.
Theological Significance
Deuteronomy teaches that the heart of true religion is love for God expressed in obedience. It reveals that God's commands are not arbitrary burdens but expressions of His character and His desire for human flourishing. The book's covenant structure shows that the relationship between God and His people is based on grace (God chose Israel not because of their merit but because of His love, Deuteronomy 7:7-8) and calls for a response of wholehearted devotion. Deuteronomy's prophecy of a coming prophet like Moses (18:15-18) finds its fulfillment in Christ, the mediator of the new covenant.
Historical Background
Deuteronomy is set on the plains of Moab, east of the Jordan River, as Israel prepared to enter Canaan. The book's covenant structure closely parallels ancient Near Eastern suzerainty treaties, particularly Hittite treaties from the second millennium BC, supporting a date in the Mosaic period. The discovery of the Book of the Law during Josiah's reforms (c. 622 BC, 2 Kings 22) has been central to scholarly debate about when Deuteronomy was composed. Conservative scholars affirm Mosaic authorship for the core material, while recognizing that the account of Moses' death (chapter 34) was added later, likely by Joshua.