[21:1] 1 sn This chapter has several events in it: the victory over Arad (vv. 1-3), the plague of serpents (vv. 4-9), the approach to Moab (vv. 10-20), and the victory over Sihon and Og (vv. 21-35). For information, see D. M. Gunn, “The ‘Battle Report’: Oral or Scribal Convention.” JBL 93 (1974): 513-18; and of the extensive literature on the archaeological site, see EAEHL 1:74-89.
[21:1] 2 sn The name Arad probably refers to a place a number of miles away from Tel Arad in southern Israel. The name could also refer to the whole region (like Edom).
[21:1] 3 tn Or “the south”; “Negev” has become a technical name for the southern desert region and is still in use in modern times.