Their anointing shall be an everlasting priesthood — A seal that their priesthood shall continue as long as the Jewish polity lasts. He signifies that this unction should be sufficient for all succeeding priests. None were afterwards anointed but the high — priests.
Related Commentaries of Exodus 40:15
Exodus 40:15
15 And thou shalt anoint them, as thou didst anoint their father, that they may minister unto me in the priest's office: for their anointing shall surely be an everlasting priesthood throughout their generations.