Exodus 29:9

Tie the sashes on Aaron and his sons and fasten headbands on them. The priesthood is to be theirs by a permanent statute. This is the way you will ordain Aaron and his sons.

Numbers 18:7

But you and your sons will carry out your priestly responsibilities for everything concerning the altar and for what is inside the veil, and you will do that work. I am giving you the work of the priesthood as a gift, but an unauthorized person who comes near the sanctuary will be put to death.”

Leviticus 8:22-28

Next he presented the second ram, the ram of ordination, and Aaron and his sons laid their hands on the head of the ram.

Exodus 28:1

“Have your brother Aaron, with his sons, come to you from the Israelites to serve Me as priest—Aaron, his sons Nadab and Abihu, Eleazar and Ithamar.

Exodus 28:40-41

Make tunics, sashes, and headbands for Aaron’s sons to give them glory and beauty.

Exodus 32:29

Afterward Moses said, “Today you have been dedicated to the Lord, since each man went against his son and his brother. Therefore you have brought a blessing on yourselves today.”

Exodus 40:15

Anoint them just as you anointed their father, so that they may also serve Me as priests. Their anointing will serve to inaugurate a permanent priesthood for them throughout their generations.”

Leviticus 8:33

You must not go outside the entrance to the tent of meeting for seven days, until the time your days of ordination are completed, because it will take seven days to ordain you.

Numbers 3:10

You are to appoint Aaron and his sons to carry out their priestly responsibilities, but any unauthorized person who comes near the sanctuary must be put to death.”

Numbers 16:10

He has brought you near, and all your fellow Levites who are with you, but you are seeking the priesthood as well.

Numbers 16:35

Fire also came out from the Lord and consumed the 250 men who were presenting the incense.

Numbers 16:40

just as the Lord commanded him through Moses. It was to be a reminder for the Israelites that no unauthorized person outside the lineage of Aaron should approach to offer incense before the Lord and become like Korah and his followers.

Numbers 25:13

It will be a covenant of perpetual priesthood for him and his future descendants, because he was zealous for his God and made atonement for the Israelites.”

Deuteronomy 18:5

For Yahweh your God has chosen him and his sons from all your tribes to stand and minister in His name from now on.

Hebrews 5:4-5

No one takes this honor on himself; instead, a person is called by God, just as Aaron was.

Hebrews 5:10

and He was declared by God a high priest in the order of Melchizedek.

Hebrews 7:11-14

If then, perfection came through the Levitical priesthood (for under it the people received the law), what further need was there for another priest to appear, said to be in the order of Melchizedek and not in the order of Aaron?

Hebrews 7:23-28

Now many have become Levitical priests, since they are prevented by death from remaining in office.

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
“Have your brother Aaron, with his sons, come to you from the Israelites to serve Me as priest—Aaron, his sons Nadab and Abihu, Eleazar and Ithamar.
Numbers 16:10
He has brought you near, and all your fellow Levites who are with you, but you are seeking the priesthood as well.
Numbers 18:7
But you and your sons will carry out your priestly responsibilities for everything concerning the altar and for what is inside the veil, and you will do that work. I am giving you the work of the priesthood as a gift, but an unauthorized person who comes near the sanctuary will be put to death.”
Hebrews 5:4
No one takes this honor on himself; instead, a person is called by God, just as Aaron was.
Hebrews 7:11
If then, perfection came through the Levitical priesthood (for under it the people received the law), what further need was there for another priest to appear, said to be in the order of Melchizedek and not in the order of Aaron?

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.