Exodus 29:4-7

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

5Then take the garments and clothe Aaron with the tunic, the robe for the ephod, the ephod itself, and the breastpiece; fasten the ephod on him with its woven waistband.

6Put the turban on his head and place the holy diadem on the turban.

7Take the anointing oil, pour it on his head, and anoint him.