Aharon and His Sons Bringing Holiness

ְבּלֶהֹ֣א ןֹ֧רֲהַא וֹ֨תֹא ֩˂ֹרֲעַי תֻ֗דֵעָה־לַע רֶ֣שֲׁא תֶכֹ֜רָפַּל ץוּ֨חִמ ֩דֵעוֹמ ויָ֛נָבוּ :'וגו פכ"ז פכ"א
Aharon and his sons shall set them up in the Mishkon, outside the curtain which is over [the Ark of] the Pact, [to burn] etc. [27:21]
So too, those who are standing outside, on a outer level. It is incumbent on the Kohanim to bring them in to the Kedushoh (Holiness), that it be for them also a level and importance. “Yaroich osso Aharon Ubonov.”

Beis Aharon – Pninei HaTorah