Exodus 28:36-39

36And thou shalt make a plate of pure gold, and grave upon it, like the engravings of a signet, HOLY TO THE LORD.

37And thou shalt put it on a lace of blue, and it shall be upon the mitre; upon the forefront of the mitre it shall be.

38And it shall be upon Aaron’s forehead, and Aaron shall bear the iniquity of the holy things, which the children of Israel shall hallow in all their holy gifts; and it shall be always upon his forehead, that they may be accepted before the LORD.

39And thou shalt weave the coat in chequer work of fine linen, and thou shalt make a mitre of fine linen, and thou shalt make a girdle, the work of the embroiderer.