Exodus 28:33-37

And beneath upon the hem of it thou shalt make pomegranates of blue, and of purple, and of scarlet, round about the hem thereof; and bells of gold between them round about:

A golden bell and a pomegranate, a golden bell and a pomegranate, upon the hem of the robe round about.

And it shall be upon Aaron to minister: and his sound shall be heard when he goeth in unto the holy place before the LORD, and when he cometh out, that he die not.

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

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