This lecture covers Bamidbar Chapter 21, examining the fragmentary narratives at the threshold of entering the Promised Land. The chapter includes the war with the King of Arad, the incident of the venomous serpents and the copper serpent remedy, travel reports with fragments of ancient poetry from lost sources like the Book of the Wars of Hashem, and the military conquests of Sihon and Og that secured Israel's position in the plains of Moav. These condensed accounts mark the transition from the first generation to the new generation, as Israel completes its desert journey and prepares to enter the land.