Exodus 28:6-8

“The craftsmen must make the ephod of finely woven linen and skillfully embroider it with gold and with blue, purple, and scarlet thread. It will consist of two pieces, front and back, joined at the shoulders with two shoulder-pieces. The decorative sash will be made of the same materials: finely woven linen embroidered with gold and with blue, purple, and scarlet thread.