Exodus 39:27-29
27 For Aaron and his sons, they made tunics of fine linen—the work of a weaver—
28 and the turban of fine linen, the linen headbands and the undergarments of finely twisted linen.
29 The sash was of finely twisted linen and blue, purple and scarlet yarn—the work of an embroiderer—as the Lord commanded Moses.