“With the explicit reference to the promise to Abraham, Moses indicates that this hope for the future worship and obedience of the people is not a generic hope.
Rather, it is tied to specific promises that we find at strategic places in the story of the Pentateuch. In other words, we can ask:
Where does this hope originate? Where can we find out more information about the content of this hope?
As we see from the story of the Pentateuch, the ability of the people to follow the law and maintain obedience from a willing heart is an insufficient place to put our hope.
In fact, this is the theme explicitly articulated by a pessimistic Moses at the climax of the Pentateuch. In his book-length closing speech, Moses argues that the Mosaic covenant has failed to bring about the obedience that the Lord requires in the hearts of the people.
What hope is there for the second generation? For the reader of the Pentateuch?
Reading and rereading the story of the Pentateuch as a whole highlights that the pattern that Moses identifies on the plains of Moab began in Eden.
This pattern is a primal one. So too, the hope that Moses anticipates has its roots in that same garden.
The forward momentum of this narrative progression is a primary way that the Pentateuch functions. Throughout this sweeping narrative storyline, though, there are strategically placed poetic sections that provide reflective commentary on the story.
These carefully arranged and strategically composed poems function like windows into the meaning of the Pentateuch’s purpose and also offer a glimpse into the author’s meaning.
Within these poems, we find a cluster of images that profile the promises that bind the major themes of the Pentateuch together.
Within these poetic compositions, an individual is described who will one day defeat God’s enemies and bring about blessing for the people rather than despair.
A future hope is promised, and the proof is in the poetry. A brief survey of these textual locations can orient us to this aspect of the story and the message of the Pentateuch.”
–Jeremy M. Kimble and Ched Spellman, Invitation to Biblical Theology: Exploring the Shape, Storyline, and Themes of Scripture, Invitation to Theological Studies Series (Grand Rapids, MI: Kregel Academic, 2020), 133-134.