Moses’ song. Like the book it contains beauty and terror.
The greatness of God is contrasted with the lousiness of the Israelites. It’s not a sentimental song.
Their history is one of letting him down. Their future is being given great victories over the enemies God will judge, and then being judged themselves for squandering God’s grace by following other Gods.
It ends by predicting that God will always stay faithful to a remnant of Israel.
The song is not really a summary of the law, it’s a picture of God’s judgment and grace. These characteristics of God sit uncomfortably together. But understanding them is vital to get the significance of Jesus.
Then sadly, Moses climbs a mountain to glimpse the land he will not inhabit because of his own sin. Few biblical characters have more grace, yet his judgment is unblinkingly recorded.
Grace costs. God is not a softy, who papers over evil, he looks at it, and recognises is destructive power. He fixes it, absorbs it, painfully.