Exodus 29:4-7

4You shall bring Aaron and his sons to the entrance of the tent of meeting and wash them with water.

5Then you shall take the garments, and put on Aaron the coat and the robe of the ephod, and the ephod, and the breastpiece, and gird him with the skillfully woven band of the ephod.

6And you shall set the turban on his head and put the holy crown on the turban.

7You shall take the anointing oil and pour it on his head and anoint him.