Exodus 39:1-4
English Standard Version
2He made the ephod of gold, blue and purple and scarlet yarns, and fine twined linen.
3And they hammered out gold leaf, and he cut it into threads to work into the blue and purple and the scarlet yarns, and into the fine twined linen, in skilled design.
4They made for the ephod attaching shoulder pieces, joined to it at its two edges.
