Exodus 29:9

And gird them with girdles, Aaron and his sons, and bind to them turbans; and the priesthood shall be to them for a law forever: and fill the hand of Aaron and the hand of his sons.

Numbers 18:7

And thou and thy sons with thee shall watch your priesthood for all the word of the altar, and to within the vail; and ye served: the services a gift I will give your priesthood; and the stranger coming near shall die.

Leviticus 8:22-28

And he will bring the second ram, the ram of the filling up: and Aaron and his sons will place their hands upon the head of the ram.

Exodus 28:1

And thou, bring thou Aaron thy brother, and his sons with him, from the midst of the sons of Israel, for him to be a priest to me, Aaron, Nadab, Abihu, Eleazar, and Ithamar, sons of Aaron.

Exodus 28:40-41

And for Aaron's sons thou shalt make tunics, and make for them girdles, and caps shalt thou make for them, for glory and for beauty.

Exodus 32:29

And Moses will say, Fill your hand this day to Jehovah, for each upon his son and upon his brother, to give to you a blessing this day.

Exodus 40:15

And anoint them as thou didst anoint their father, and they were priests to me; and it was to be to them an anointing for the priesthood forever for their generations.

Leviticus 8:33

And ye shall not go out from the door of the tent of appointment, seven days, till the day of filling up the days of your fillings up: for seven days shall he fill your hands.

Numbers 3:10

And Aaron and his sons thou shalt set up, and they shall watch their priesthood; and the stranger coming near shall die.

Numbers 16:10

He will bring thee near, and all thy brethren the sons of Levi with thee: and did ye seek also the priesthood?

Numbers 16:35

And a fire will come forth from Jehovah and will consume the fifty and two hundred men bringing the incense

Numbers 16:40

A remembrance to the sons of Israel, so that a man, a stranger, shall not come near, he who is not from the seed of Aaron, to burn incense before Jehovah; and he shall not be as Korah and as his assembly: as Jehovah spake to him by the hand of Moses.

Numbers 25:13

And it shall be to him and to his seed after him, the covenant of the priesthood forever, because he was jealous for his God; and he shall expiate for the sons of Israel.

Deuteronomy 18:5

For in him Jehovah thy God chose from all thy tribes to stand to serve in the name of Jehovah, he and his sons all the days.

Hebrews 5:4-5

And not any takes this honour to himself; but the called of God, as also Aaron.

Hebrews 5:10

Addressed by God the chief priest according to the order of Melchisedec.

Hebrews 7:11-14

If truly therefore completion were by the Levitical priesthood, (for the people received legislation by it,) what further need according to the order of Melchisedec for another priest to be raised, and not according to the order of Aaron?

Hebrews 7:23-28

And they truly are become many priests, by reason of death being hindered from remaining:

Treasury of Scripture Knowledge

Summary

And thou shalt gird them with girdles, Aaron and his sons, and put the bonnets on them: and the priest's office shall be theirs for a perpetual statute: and thou shalt consecrate Aaron and his sons.

Bible References

The priest's

Exodus 28:1
And thou, bring thou Aaron thy brother, and his sons with him, from the midst of the sons of Israel, for him to be a priest to me, Aaron, Nadab, Abihu, Eleazar, and Ithamar, sons of Aaron.
Numbers 16:10
He will bring thee near, and all thy brethren the sons of Levi with thee: and did ye seek also the priesthood?
Numbers 18:7
And thou and thy sons with thee shall watch your priesthood for all the word of the altar, and to within the vail; and ye served: the services a gift I will give your priesthood; and the stranger coming near shall die.
Hebrews 5:4
And not any takes this honour to himself; but the called of God, as also Aaron.
Hebrews 7:11
If truly therefore completion were by the Levitical priesthood, (for the people received legislation by it,) what further need according to the order of Melchisedec for another priest to be raised, and not according to the order of Aaron?