A common misconception about God’s Law is that it’s all about perfection, that it’s unrealistic in a fallen world. Rather, the capstone passage of the Torah — reading הַאֲזִינוּ Ha’azinu (“listen,” Deuteronomy 32) — recounts Israel’s screwups past, present and future as well as the LORD’s mercy and plan for redemption.
It should be no surprise, then, that the final acts of God’s redemption give the “song of Moses” (Deuteronomy 32) double-billing with the “song of the Lamb” (Revelation 15:3).