1 Samuel 2:28

2:28 I chose your ancestor from all the tribes of Israel to be my priest, to offer sacrifice on my altar, to burn incense, and to bear the ephod before me. I gave to your ancestor’s house all the fire offerings made by the Israelites.

Exodus 28:26-32

28:26 You are to make two rings of gold and put them on the other two ends of the breastpiece, on its edge that is on the inner side of the ephod. 28:27 You are to make two more gold rings and attach them to the bottom of the two shoulder pieces on the front of the ephod, close to the juncture above the waistband of the ephod. 28:28 They are to tie the breastpiece by its rings to the rings of the ephod by blue cord, so that it may be above the waistband of the ephod, and so that the breastpiece will not be loose from the ephod. 28:29 Aaron will bear the names of the sons of Israel in the breastpiece of decision over his heart when he goes into the holy place, for a memorial before the Lord continually.

28:30 “You are to put the Urim and the Thummim into the breastpiece of decision; and they are to be over Aaron’s heart when he goes in before the Lord. Aaron is to bear the decisions of the Israelites over his heart before the Lord continually.

28:31 “You are to make the robe of the ephod completely blue. 28:32 There is to be an opening in its top in the center of it, with an edge all around the opening, the work of a weaver, like the opening of a collar, so that it cannot be torn.