EXODUS 29:9
And thou shalt gird them with girdles, Aaron and his sons, and bind headtires on them: and they shall have the priesthood by a perpetual statute: and thou shalt consecrate Aaron and his sons.And thou shalt gird them with girdles, Aaron and his sons, and bind headtires on them: and they shall have the priesthood by a perpetual statute: and thou shalt consecrate Aaron and his sons.