Exodus 28:35-37

The Voice

³⁵ Whenever he serves as priest, Aaron must wear the robe so that he will not die, because the tinkling of the bells will announce that he intends to enter or leave My presence in the holy place.

³⁶ Make a medallion out of pure gold, and engrave it like you were engraving a seal with the inscription: “Holy to the Eternal.” ³⁷ Fasten it with a blue cord to the front of Aaron’s turban.