וַיֵּ֨צְא֜וּ מֹשֶׁ֨ה וְאֶלְעָזָ֧ר הַכֹּהֵ֛ן וְכָל־נְשִׂיאֵ֥י הָעֵדָ֖ה לִקְרָאתָ֑ם אֶל־מִח֖וּץ לַֽמַּחֲנֶֽה׃
And Moses, and Eleazar the priest, and all the princes of the congregation, went forth to meet them without the camp.
Read kabbalistic (mystical) interpretation of Numbers 31:13: and classical mystical sources.