Exodus 28:4; Exodus 28:15

4 These are the garments that they shall make: a breastpiece, an ephod, a robe, a coat of checker work, a turban, and a sash. They shall make holy garments for Aaron your brother and his sons to serve me as priests.

15 "You shall make a breastpiece of judgment, in skilled work. In the style of the ephod you shall make it--of gold, blue and purple and scarlet yarns, and fine twined linen shall you make it.