Sojourning Under the Sun: Sabbath Mission (Deuteronomy 4:1-24)

The rebellious generation has been purged and Moses is about to die.  So, Moses addresses the people of Israel exhorting them to remember their God and to remember their mission in the land.  What is their mission in the land?  What is their unique calling as a nation?  What is their purpose as they enter this unique land at a unique time in their history?