Exodus 28:4-12 New King James Version (NKJV)

⁴ And these are the garments which they shall make: a breastplate, an ^[a]ephod, a robe, a skillfully woven tunic, a turban, and a sash. So they shall make holy garments for Aaron your brother and his sons, that he may minister to Me as priest.

The Ephod

⁵ “They shall take the gold, blue, purple, and scarlet thread, and the fine linen, ⁶ and they shall make the ephod of gold, blue, purple, and scarlet thread, and fine woven linen, artistically worked. ⁷ It shall have two shoulder straps joined at its two edges, and so it shall be joined together. ⁸ And the ^[b]intricately woven band of the ephod, which is on it, shall be of the same workmanship, made of gold, blue, purple, and scarlet thread, and fine woven linen.

⁹ “Then you shall take two onyx stones and engrave on them the names of the sons of Israel: ¹⁰ six of their names on one stone and six names on the other stone, in order of their birth. ¹¹ With the work of an engraver in stone, like the engravings of a signet, you shall engrave the two stones with the names of the sons of Israel. You shall set them in settings of gold. ¹² And you shall put the two stones on the shoulders of the ephod as memorial stones for the sons of Israel. So Aaron shall bear their names before the Lord on his two shoulders as a memorial.

1 Samuel 23:9-12 New King James Version (NKJV)

⁹ When David knew that Saul plotted evil against him, he said to Abiathar the priest, “Bring the ephod here.” ¹⁰ Then David said, “O Lord God of Israel, Your servant has certainly heard that Saul seeks to come to Keilah to destroy the city for my sake. ¹¹ Will the men of Keilah deliver me into his hand? Will Saul come down, as Your servant has heard? O Lord God of Israel, I pray, tell Your servant.”

And the Lord said, “He will come down.”

¹² Then David said, “Will the men of Keilah ^[a]deliver me and my men into the hand of Saul?”

And the Lord said, “They will deliver you.”