Leviticus 8:11-15

He also sprinkled some of it on the altar seven times and anointed the altar and all its utensils, and the basin and its stand, to consecrate them.

Then he poured some of the anointing oil on Aaron’s head and anointed him, to consecrate him.

Next Moses had Aaron’s sons come near, and he clothed them with tunics and wrapped their waists with sashes, and bound caps on them, just as the Lord had commanded Moses.

Then he brought the bull of the sin offering, and Aaron and his sons laid their hands on the head of the bull of the sin offering.

Next Moses slaughtered it and took the blood and with his finger put some of it around on the horns of the altar, and purified the altar. Then he poured out the rest of the blood at the base of the altar and consecrated it, to make atonement for it.