28. Kedar—son of Ishmael (Ge 25:13). The Kedarenes led a wandering predatory life in Arabia-Petræa, as the Bedouin Arabs (2Ch 21:16, 17; Ps 120:5). Kedar means "blackness" (So 1:5).
Hazor—not the city in Palestine, but a district in Arabia-Petræa. "Kingdoms" refer to the several combinations of clans, each under its own sheik.
men of the east—Kedar and Hazor were east of Judea (Jud 6:3; Job 1:3).