Exodus 28:8

28:8 The artistically woven waistband of the ephod that is on it is to be like it, of one piece with the ephod, of gold, blue, purple, scarlet, and fine twisted linen.

Exodus 29:5

29:5 and take the garments and clothe Aaron with the tunic, the robe of the ephod, the ephod, and the breastpiece; you are to fasten the ephod on him by using the skillfully woven waistband.

Exodus 39:1

The Making of the Priestly Garments

39:1 From the blue, purple, and scarlet yarn they made woven garments for serving in the sanctuary; they made holy garments that were for Aaron, just as the Lord had commanded Moses.

Exodus 39:5

39:5 The artistically woven waistband of the ephod that was on it was like it, of one piece with it, of gold, blue, purple, and scarlet yarn and fine twisted linen, just as the Lord had commanded Moses.