en_tn/deu/18/07.md

then he must serve in the name of Yahweh his God

Here "name" represents Yahweh and his authority. Alternate translation: "then he must serve Yahweh his God as a priest" (See: rc://en/ta/man/jit/figs-metonymy)

who stand there before Yahweh

"who serve in the sanctuary in the presence of Yahweh"