Exodus 29:6

You shall put them into one basket, and bring them in the basket, with the bull and the two rams.

You shall bring Aaron and his sons to the door of the Tent of Meeting, and shall wash them with water.

You shall take the garments, and put on Aaron the tunic, the robe of the ephod, the ephod, and the breastplate, and clothe him with the skillfully woven band of the ephod.

Then you shall take the anointing oil, and pour it on his head, and anoint him.

You shall bring his sons, and put tunics on them.

You shall clothe them with belts, Aaron and his sons, and bind headbands on them. They shall have the priesthood by a perpetual statute. You shall consecrate Aaron and his sons.