Exodus 29:9

And you shall gird them with belts, Aaron and his sons, and put the turbans on them: and the priest's office shall be theirs for a perpetual statute: and you shall consecrate Aaron and his sons.

Numbers 18:7

Therefore you and your sons with you shall keep your priest's office for everything at the altar, and within the veil; and you shall serve: I have given your priest's office unto you as a gift for service: and the stranger that comes near shall be put to death.

Leviticus 8:22-28

And he brought the other ram, the ram of consecration: and Aaron and his sons laid their hands upon the head of the ram.

Exodus 28:1

And take unto you Aaron your brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.

Exodus 28:40-41

And for Aaron's sons you shall make coats, and you shall make for them belts, and turbans shall you make for them, for glory and for beauty.

Exodus 32:29

For Moses had said, Consecrate yourselves today to the LORD, even every man upon the cost of his son, and his brother; that he may bestow upon you a blessing this day.

Exodus 40:15

And you shall anoint them, as you did anoint their father, that they may minister unto me in the priest's office: for their anointing shall surely be an everlasting priesthood throughout their generations.

Leviticus 8:33

And you shall not go out of the door of the tabernacle of meeting in seven days, until the days of your consecration be at an end: for seven days shall he consecrate you.

Numbers 3:10

And you shall appoint Aaron and his sons, and they shall wait on their priest's office: and the stranger that comes near shall be put to death.

Numbers 16:10

And he has brought you near to him, and all your brethren the sons of Levi with you: and seek you the priesthood also?

Numbers 16:35

And there came out a fire from the LORD, and consumed the two hundred and fifty men that offered incense.

Numbers 16:40

To be a memorial unto the children of Israel, that no stranger, who is not of the descendants of Aaron, come near to offer incense before the LORD; that he become not as Korah, and as his company: as the LORD said to him by the hand of Moses.

Numbers 25:13

And he shall have it, and his descendants after him, even the covenant of an everlasting priesthood; because he was zealous for his God, and made an atonement for the children of Israel.

Deuteronomy 18:5

For the LORD your God has chosen him out of all your tribes, to stand to minister in the name of the LORD, him and his sons forever.

Hebrews 5:4-5

And no man takes this honor unto himself, but he that is called of God, as was Aaron.

Hebrews 5:10

Called of God a high priest after the order of Melchizedek.

Hebrews 7:11-14

If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchizedek, and not be called after the order of Aaron?

Hebrews 7:23-28

And they truly were many priests, because they were not allowed to continue by reason of death:

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 take unto you Aaron your brother, and his sons with him, from among the children of Israel, that he may minister unto me in the priest's office, even Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron's sons.
Numbers 16:10
And he has brought you near to him, and all your brethren the sons of Levi with you: and seek you the priesthood also?
Numbers 18:7
Therefore you and your sons with you shall keep your priest's office for everything at the altar, and within the veil; and you shall serve: I have given your priest's office unto you as a gift for service: and the stranger that comes near shall be put to death.
Hebrews 5:4
And no man takes this honor unto himself, but he that is called of God, as was Aaron.
Hebrews 7:11
If therefore perfection were by the Levitical priesthood, (for under it the people received the law,) what further need was there that another priest should rise after the order of Melchizedek, and not be called after the order of Aaron?