The consecration of the priests. See the notes to Leviticus 8–9.

Exodus 29:4: Door of the tabernacle - Entrance of the te…

Thou shalt take the garments — that is, those described in the preceding chapter.

The coat — …

And thou shall take the garments
The priestly garments before ordered to be made, and when made:

Aaron and his sons were to be set apart for the priest's office with ceremony and solemnity.