Charles Ellicott Commentary Leviticus 8:10

"And Moses took the anointing oil, and anointed the tabernacle and all that was therein, and sanctified them." — Leviticus 8:10 (ASV)

And Moses took the anointing oil. —Having invested the high priest with the visible emblems of his office and holiness, Moses now, in accordance with the directions given in Exodus 30:26-30 and Exodus 40:9-11, first anointed the tabernacle and all that was in it—that is, the ark of the covenant, the altar of incense, the candlestick, the table of shewbread, with all the utensils belonging to them. For the ingredients of this oil, which is also called oil of holy ointment (Exodus 30:25), see Exodus 30:23-25.

And sanctified them. —That is, by this unction Moses separated them from the laity, and dedicated them to the service of God, so that they were not to come in contact with any defilement. (See Exodus 29:37 and Exodus 30:29-30.)