וַֽיַּעֲמֵד֙ הַשּׁ֣וֹעֲרִ֔ים עַֽל־שַׁעֲרֵ֖י בֵּ֣ית יְהוָ֑ה וְלֹֽא־יָבֹ֥א טָמֵ֖א לְכָל־דָּבָֽר׃
Und er stellte die Träger vor die Tore des Hauses des HERRN, damit niemand eintreten sollte, der in irgendetwas unrein war.
Rashi on II Chronicles
so that no one who was unclean should enter for any matter There were also appointees [whose job it was] not to allow any unclean person to enter the forecourt for any reason.