Exodus 29:9

and you shall gird Aaron and his sons with sashes and bind caps on them. And the priesthood shall be theirs by a statute forever. Thus you shall ordain Aaron and his sons.

Numbers 18:7

And you and your sons with you shall guard your priesthood for all that concerns the altar and that is within the veil; and you shall serve. I give your priesthood as a gift, and any outsider who comes near shall be put to death."

Leviticus 8:22-28

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

Exodus 28:1

"Then bring near to you Aaron your brother, and his sons with him, from among the people of Israel, to serve me as priests--Aaron and Aaron's sons, Nadab and Abihu, Eleazar and Ithamar.

Exodus 28:40-41

"For Aaron's sons you shall make coats and sashes and caps. You shall make them for glory and beauty.

Exodus 32:29

And Moses said, "Today you have been ordained for the service of the LORD, each one at the cost of his son and of his brother, so that he might bestow a blessing upon you this day."

Exodus 40:15

and anoint them, as you anointed their father, that they may serve me as priests. And their anointing shall admit them to a perpetual priesthood throughout their generations."

Leviticus 8:33

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

Numbers 3:10

And you shall appoint Aaron and his sons, and they shall guard their priesthood. But if any outsider comes near, he shall be put to death."

Numbers 16:10

and that he has brought you near him, and all your brothers the sons of Levi with you? And would you seek the priesthood also?

Numbers 16:35

And fire came out from the LORD and consumed the 250 men offering the incense.

Numbers 16:40

to be a reminder to the people of Israel, so that no outsider, who is not of the descendants of Aaron, should draw near to burn incense before the LORD, lest he become like Korah and his company--as the LORD said to him through Moses.

Numbers 25:13

and it shall be to him and to his descendants after him the covenant of a perpetual priesthood, because he was jealous for his God and made atonement for the people of Israel.'"

Deuteronomy 18:5

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

Hebrews 5:4-5

And no one takes this honor for himself, but only when called by God, just as Aaron was.

Hebrews 5:10

being designated by God a high priest after the order of Melchizedek.

Hebrews 7:11-14

Now if perfection had been attainable through the Levitical priesthood (for under it the people received the law), what further need would there have been for another priest to arise after the order of Melchizedek, rather than one named after the order of Aaron?

Hebrews 7:23-28

The former priests were many in number, because they were prevented by death from continuing 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
"Then bring near to you Aaron your brother, and his sons with him, from among the people of Israel, to serve me as priests--Aaron and Aaron's sons, Nadab and Abihu, Eleazar and Ithamar.
Numbers 16:10
and that he has brought you near him, and all your brothers the sons of Levi with you? And would you seek the priesthood also?
Numbers 18:7
And you and your sons with you shall guard your priesthood for all that concerns the altar and that is within the veil; and you shall serve. I give your priesthood as a gift, and any outsider who comes near shall be put to death."
Hebrews 5:4
And no one takes this honor for himself, but only when called by God, just as Aaron was.
Hebrews 7:11
Now if perfection had been attainable through the Levitical priesthood (for under it the people received the law), what further need would there have been for another priest to arise after the order of Melchizedek, rather than one named after the order of Aaron?

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.