וַיֹּ֕אמֶר אֵי־זֶ֥ה הַדֶּ֖רֶךְ נַעֲלֶ֑ה וַיֹּ֕אמֶר דֶּ֖רֶךְ מִדְבַּ֥ר אֱדֽוֹם׃
And he said: ‘Which way shall we go up?’ And he answered: ‘The way of the wilderness of Edom.’
Read midrashic interpretation of II Kings 3:8: and classical rabbinic exegesis.