Read Exodus 40:13 Using Other Translations
And thou shalt put upon Aaron the holy garments, and anoint him, and sanctify him; that he may minister unto me in the priest's office.
and put on Aaron the holy garments. And you shall anoint him and consecrate him, that he may serve me as priest.
Dress Aaron with the sacred garments and anoint him, consecrating him to serve me as a priest.