וַיִּפְנוּ֙ וַֽיַּעֲל֔וּ דֶּ֖רֶךְ הַבָּשָׁ֑ן וַיֵּצֵ֣א עוֹג֩ מֶֽלֶךְ־הַבָּשָׁ֨ן לִקְרָאתָ֜ם ה֧וּא וְכָל־עַמּ֛וֹ לַמִּלְחָמָ֖ה אֶדְרֶֽעִי׃
And they turned and went up by the way of Bashan; and Og the king of Bashan went out against them, he and all his people, to battle at Edrei.
Read kabbalistic (mystical) interpretation of Numbers 21:33: and classical mystical sources.