Exodus 29:7

5You 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.

6You shall set the turban on his head, and put the holy crown on the turban.

7Then you shall take the anointing oil, and pour it on his head, and anoint him.

8You shall bring his sons, and put tunics on them.

9You 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.