Exodus 39:1-5

They made specially woven  garments for ministry in the sanctuary, and the holy garments for Aaron from the blue, purple, and scarlet yarn, just as the Lord had commanded Moses.  Bezalel  made the ephod of gold, of blue, purple, and scarlet yarn, and of finely spun linen. They hammered out thin sheets of gold, and he  cut threads from them to interweave with the blue, purple, and scarlet yarn, and the fine linen in a skillful design. They made shoulder pieces for attaching it; it was joined together at its two edges. The artistically woven waistband that was on the ephod was of one piece with the ephod, according to the same workmanship of gold, of blue, purple, and scarlet yarn, and of finely spun linen, just as the Lord had commanded Moses.