Exodus 28:42

⁴⁰And for the sons of Aaron thou shalt make tunics and girdles, and thou shalt make for them tires for honor and glory.

⁴¹And thou shalt put them on Aaron thy brother, and his sons with him, and thou shalt anoint them and fill their hands: and thou shalt sanctify them, that they may minister to me in the priest’s office.

— Exodus 28:42 —

⁴³And Aaron shall have them, and his sons, whenever they enter into the tabernacle of witness, or when they shall advance to the altar of the sanctuary to minister, so they shall not bring sin upon themselves, lest they die: it is a perpetual statute for him, and for his seed after him.