Exodus 29:9

9 and thou shalt gird Aaron and (each of) his sons with a girdle; and thou shalt set mitres on them; and they shall be my priests by everlasting religion. [And] After that thou hast hallowed their hands, (and as with Aaron, thou shalt gird each of his sons with a sash; and thou shalt put the peaked caps on them; and they shall serve as my priests by an everlasting law. And after that thou hast consecrated them,)

Exodus 29:9 Meaning and Commentary

Exodus 29:9

And thou shalt gird them with girdles (Aaron and his sons),
&c.] Aaron with the girdle of the ephod, and with the girdle of needlework, and his sons with common girdles made for them; all which showed what strength, diligence, and expedition were necessary for the discharge of their office:

and put the bonnets on them;
upon their heads, which differed only from the high priest's mitre in the manner of rolling or wrapping, as has been observed on ( Exodus 28:39 Exodus 28:40 ) :

and the priest's office shall be theirs for a perpetual statute;
that is, shall descend from father to son in Aaron's family throughout all generations, until the Messiah should come; who would be a priest of another order, and put an end to the Aaronic priesthood, by fulfilling what that was a type of, and so abolishing it:

and thou shall consecrate Aaron and his sons;
or "fill the hand of them"; that is, with sacrifices to offer for themselves and others, (See Gill on Exodus 28:41). The Targums of Onkelos and Jonathan are,

``shall offer the offering of Aaron, and the offering of his sons,''

of which there is an after account, and was one part of their consecration.

Exodus 29:9 In-Context

7 and thou shalt shed the oil of anointing on his head; and by this custom he shall be (made) sacred. (and thou shalt pour the anointing oil on his head; and by this rite he shall be consecrated.)

8 Also thou shalt present his sons, and thou shalt clothe them with linen clothes, (And then thou shalt present his sons, and thou shalt clothe them with linen shirts, or tunics,)

9 and thou shalt gird Aaron and (each of) his sons with a girdle; and thou shalt set mitres on them; and they shall be my priests by everlasting religion. [And] After that thou hast hallowed their hands, (and as with Aaron, thou shalt gird each of his sons with a sash; and thou shalt put the peaked caps on them; and they shall serve as my priests by an everlasting law. And after that thou hast consecrated them,)

10 also thou shalt present the calf before the tabernacle of (the) witnessing; and Aaron and his sons shall put their hands upon the calf's head;

11 and thou shalt slay it in the sight of the Lord, beside the door of the tabernacle of witnessing. (and thou shalt kill it before the Lord, at the entrance to the Tabernacle of the Witnessing.)