Exo 28:6-14
The first part mentioned of Aaron’s holy dress, i.e., of the official dress of the high priest, is the ephod. The etymology of this word is uncertain; the Sept. rendering is ἐπωμίς (Vulg. superhumerale, shoulder-dress; Luther, “body-coat”). It was to be made of gold, hyacinth, etc., artistically woven, - of the same material, therefore, as the inner drapery and curtain of the tabernacle; but instead of having the figures of cherubim woven into it, it was to be worked throughout with gold, i.e., with gold thread. According to Exo 39:3, the gold plates used for the purpose were beaten out, and then threads were cut (from them), to be worked into the hyacinth, purple, scarlet, and byssus. It follows from this, that gold threads were taken for every one of these four yearns, and woven with them.