Numbers 4:47
JPS-1917מִבֶּ֨ן שְׁלֹשִׁ֤ים שָׁנָה֙ וָמַ֔עְלָה וְעַ֖ד בֶּן־חֲמִשִּׁ֣ים שָׁנָ֑ה כׇּל־הַבָּ֗א לַעֲבֹ֨ד עֲבֹדַ֧ת עֲבֹדָ֛ה וַעֲבֹדַ֥ת מַשָּׂ֖א בְּאֹ֥הֶל מוֹעֵֽד׃
from thirty years old and upward even unto fifty years old, every one that entered in to do the work of service, and the work of bearing burdens in the tent of meeting,
Rashi Commentary
עבדת עבדה THE SERVICE OF THE MINISTRY — (lit., a service of a service). This is the song of the Levites with accompaniment of cymbals and harps, this being the service attached to another service (the sacrificial service) (Arakhin 11a). ועבדת משא is what it literally implies: AND THE SERVICE OF CARRYING.
Other Translations
מִבֶּ֨ן שְׁלֹשִׁ֤ים שָׁנָה֙ וָמַ֔עְלָה וְעַ֖ד בֶּן־חֲמִשִּׁ֣ים שָׁנָ֑ה כׇּל־הַבָּ֗א לַעֲבֹ֨ד עֲבֹדַ֧ת עֲבֹדָ֛ה וַעֲבֹדַ֥ת מַשָּׂ֖א בְּאֹ֥הֶל מוֹעֵֽד׃
from thirty years old and upward to fifty years old, everyone that came to do the service of the ministry, and the service of carrying in the Tent of Meeting.