Leviticus 8:6-9

Then Moses presented Aaron and his sons and washed them with water. He put the tunic on Aaron, wrapped the sash around him, clothed him with the robe, and put the ephod on him. He put the woven band of the ephod around him and fastened it to him. Then he put the breastpiece on him and placed the Urim and Thummim into the breastpiece. He also put the turban on his head and placed the gold medallion, the holy diadem, on the front of the turban, as the LORD had commanded Moses.