This book is such a sobering reminder of choosing right vs. wrong. It’s really nothing but constant reminders to Israel to be careful of their hearts. Over and over, God reminds them what He’s done for them (freeing them from Egypt, feeding + protecting them in the desert, wiping away their enemies) and promises them blessing if they keep His commandments and obey Him—a prosperous land, the glory of nations, fruitful families, and happy lives. Over and over He reminds them that they must not take away or add to His law—simply follow it wholeheartedly and teach it to their children. He reminds them to firmly remove evil from around them and warns them of the cost of disobedience—death, suffering, and shame.
Really beautiful. One of the great speeches in all of literature. I'm a sucker for long-form speeches like this, where a person just lays out everything they think in an organized manner. There's also neat ancient near-eastern structural and genre things going on here, in terms of how contracts and covenants worked.
Did Moses write it? I don't know. Not sure if it matters. Like Ecclesiastes, this is more likely a book written in the sytle of Moses. Some of the grammar and vocabulary are very late-Hebrew, denoting the post-Babylonian period; which could indicate either editorial changes or late-authorship (and late-authorship could be based on long-standing oral traditions of things Moses said), but neither changes the effect of the book.
Basically, Deuteronomy is a neat book, and the KJV translation is really beautiful.
Hear, O Israel: The Lord our God, the Lord is one. Love the Lord your God with all your heart and with all your soul and with all your strength. (Deuteronomy 6:4-5)