Exodus 29:9
You shall clothe them with belts, Aaron and his sons, and bind headbands on them. They shall have the priesthood by a perpetual statute. You shall consecrate Aaron and his sons.
World English Bible (Public Domain)
In context
Before · Exodus 29:7–8
7Then you shall take the anointing oil, and pour it on his head, and anoint him. 8You shall bring his sons, and put tunics on them.
9You shall clothe them with belts, Aaron and his sons, and bind headbands on them. They shall have the priesthood by a perpetual statute. You shall consecrate Aaron and his sons.