Deuteronomy 32:45

And Moses made an end of speaking all these words to all Israel:

The verse marks the close of Moses' final words and instruction to all Israel, as the book approaches the end of his life. This speaking to all Israel stands within the ninth of ten discourses in the book. Specifically, it marks the close of the song Moses spoke and taught to Israel after he delivered the song God commanded him to write as a witness against the people, placing that song within his final address to the assembled nation.

The verse marks the close of the song Moses spoke to all Israel. The chapter is one of two beautiful poems. As Moses's own words spoken to all Israel its poetry shares the literary character of Job, Exodus 15, and Psalm 90, giving evidence that Moses wrote the book of Job.

Moses taught that song to call Israel to remember their own nothingness and God's goodness and power. It was taught to help them remember God and His wonderful works and promises to them. In it truths about God and prophecies concerning the tribes were preserved for the people to remember through later generations. The verse belongs to the account that closes Deuteronomy with Moses' songs concerning Israel and the record of his death.

The verse shows that the other law apart from the Decalogue was spoken to all Israel by Moses. Moses did the speaking of this law, then told the people to set their hearts on all its words and command their children to do it. This law belongs to Moses as speaker, in contrast to the Ten Commandments which God himself spoke from heaven with his own voice.