Exodus 40:13-15

Young's Literal Translation

¹³ and thou hast clothed Aaron with the holy garments, and anointed him, and sanctified him, and he hath acted as priest to Me.

¹⁴ `And his sons thou dost bring near, and hast clothed them with coats,

¹⁵ and anointed them as thou hast anointed their father, and they have acted as priests to Me, and their anointing hath been to be to them for a priesthood age-during, to their generations.'