en_tn/num/18/03.md

Connecting Statement:

Yahweh continues speaking to Aaron.

They must serve you

"They" refers to members of the tribe of Levi; the word "you" is singular and refers to Aaron. (See: rc://en/ta/man/jit/figs-you)

or they and also you will die

Here "they" refers to any member of the tribe of Levi who comes "near to anything in the sanctuary;" the word "you" is plural and refers to both Aaron and the rest of the Levites who are serving in approved roles. (See: rc://en/ta/man/jit/figs-pronouns)