Numbers 20:14-21

Permission to pass through Edom refused.

The Edomites occupied territory to the south of the Dead Sea, westward as far as Kadesh (Numbers 20:16) and southward as far as the eastern arm of the Red Sea (Numbers 21:4). The Israelites having failed long before to enter Canaan from the south, did not attempt it again (see, however, n. on Numbers 21:1-3), but proposed to enter it from the east. And if they could pass straight through Edom, their route would be greatly shortened. Edom's refusal forced them to work round the south of the hostile country, and then northwards along its eastern border.