en_tn/num/08/22.md

to do their service

AT: "to serve" (See: rc://en/ta/man/translate/figs-abstractnouns)

before Aaron and before Aaron's sons

AT: "in the presence of Aaron and his sons" (See: rc://en/ta/man/translate/figs-idiom)

They treated all the Levites

Here the word "They" refers to the people of Israel.