כִּי֩ יְהוָ֨ה אֱלֹהֶ֜יךָ מִתְהַלֵּ֣ךְ ׀ בְּקֶ֣רֶב מַחֲנֶ֗ךָ לְהַצִּֽילְךָ֙ וְלָתֵ֤ת אֹיְבֶ֙יךָ֙ לְפָנֶ֔יךָ וְהָיָ֥ה מַחֲנֶ֖יךָ קָד֑וֹשׁ וְלֹֽא־יִרְאֶ֤ה בְךָ֙ עֶרְוַ֣ת דָּבָ֔ר וְשָׁ֖ב מֵאַחֲרֶֽיךָ׃ (ס)
Porque SEÑOR tu Dios anda por medio de tu campo, para librarte y entregar tus enemigos delante de ti; por tanto será tu real santo: porque él no vea en ti cosa inmunda, y se vuelva de en pos de ti.
Rashi on Deuteronomy
ולא יראה בך THAT HE SEE NOT IN THEE — that the Holy One, blessed be He see not in thee ערות דבר A NAKEDNESS OF ANYTHING.
Sforno on Deuteronomy
והיה מחניך קדוש, both free of ritual impurities as well as from repulsive things, even though not ritually impure.
Rashbam on Deuteronomy
מתהלך, for also the Holy Ark containing a copy of the Torah went out to war with the army, as is written: וכלי הקודש וחצוצרות התרועה בידו, ”with the holy vessels and the trumpets in his hand (Numbers 31,6) [Pinchas accompanying the 12.000 men on the punitive expedition against Midian. Ed.]