וְאֶת־כָּל־חֶלְבּוֹ֙ יַקְטִ֣יר הַמִּזְבֵּ֔חָה כְּחֵ֖לֶב זֶ֣בַח הַשְּׁלָמִ֑ים וְכִפֶּ֨ר עָלָ֧יו הַכֹּהֵ֛ן מֵחַטָּאת֖וֹ וְנִסְלַ֥ח לֽוֹ׃ (פ)
그 모든 기름은 화목제 희생의 기름 같이 단 위에 불사를지니 이같이 제사장이 그 범한 죄에 대하여 그를 위하여 속죄한즉 그가 사함을 얻으리라
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.