וְאֶת־כָּל־חֶלְבּוֹ֙ יַקְטִ֣יר הַמִּזְבֵּ֔חָה כְּחֵ֖לֶב זֶ֣בַח הַשְּׁלָמִ֑ים וְכִפֶּ֨ר עָלָ֧יו הַכֹּהֵ֛ן מֵחַטָּאת֖וֹ וְנִסְלַ֥ח לֽוֹ׃ (פ)
Il en fera fumer toute la graisse sur l’autel, comme la graisse de la victime rémunératoire. Le pontife lui obtiendra ainsi propitiation pour sa faute, et elle lui sera remise.
Guide for the Perplexed
The Levites did not sacrifice; they were not considered as being agents in the atonement of sins, for it was only the priest who was commanded “to make atonement for him” (Lev. 4:26) and “to make atonement for her” (Lev. 12:8). The duty of the Levites was the performance of vocal music; and a Levite became therefore disabled for service when he lost his voice. The object of the singing is to produce certain emotions; this object can only be attained by pleasing sounds and melodies accompanied by music, as was always the case in the Temple.