They made the ephod of gold, and of blue, purple and scarlet yarn, and of finely twisted linen.
References for Exodus 39:2
They hammered out thin sheets of gold and cut strands to be worked into the blue, purple and scarlet yarn and fine linen--the work of a skilled craftsman.
They made shoulder pieces for the ephod, which were attached to two of its corners, so it could be fastened.
Its skillfully woven waistband was like it--of one piece with the ephod and made with gold, and with blue, purple and scarlet yarn, and with finely twisted linen, as the LORD commanded Moses.
They mounted the onyx stones in gold filigree settings and engraved them like a seal with the names of the sons of Israel.
Then they fastened them on the shoulder pieces of the ephod as memorial1 stones for the sons of Israel, as the LORD commanded Moses.
References for Exodus 39:7