The readiest and most natural “way” was across the Jordan near Jericho into the Arboth-Moab, and then along the eastern shore of the Dead Sea to Moab proper, the tract south of the Arnon. But the way chosen was that which led to the Edomite country, namely, round the southern extremity of the Dead Sea, and across the Arabah, or continuation of the Jordan and Dead Sea valley. Thus would be effected a junction with the forces of Edom, which had resumed its dependence on Judah, though the year before it had been in alliance with Moab 2 Chronicles 20:22; and they would come upon the Moabites unprepared.
Related Commentaries of 2 Kings 3:8
2 Kings 3:8
8 And he said, Which way shall we go up? And he answered, The way through the wilderness of Edom.