Exodus 39:2-7

Amplified Bible

² Bezalel made the ephod of gold, and of blue, purple, and scarlet fabric, and fine twisted linen. ³ Then Bezalel and Oholiab hammered the gold [into thin sheets] and cut it into threads to work into the blue, purple, and scarlet fabric, and into the fine linen, the work of a skilled craftsman. ⁴ They made attaching shoulder pieces for the ephod; it was attached at its two [upper] edges. ⁵ The skillfully woven sash with which to bind it, which was on the ephod [to hold it in place], was like its workmanship, of the same material: of gold and of blue, purple, and scarlet fabric, and fine twisted linen, just as the Lord had commanded Moses.

⁶ They made the onyx stones, set in settings of gold filigree; they were engraved as signets are engraved, with the names of [the twelve tribes of] the sons of Israel. ⁷ And he put them on the shoulder pieces of the ephod to be memorial stones (a remembrance) for the sons of Israel (Jacob), just as the Lord had commanded Moses.