'Priesthood' in the Bible

And you will gird Aaron and his sons [with] sashes and wrap headdresses on them. And priesthood will be theirs as a lasting rule, and {you will ordain Aaron and his sons.}

And you will anoint them as you anointed their father, and they will serve as priests for me. And their anointing will be for them to be a lasting priesthood throughout their generations."

But you will count Aaron and his descendants; they will keep their priesthood, and the stranger who approaches will be put to death."

{He has allowed you to approach him}, you with all your brothers, the descendants of Levi, but yet you also seek the priesthood.

Yahweh said to Aaron, "You, your sons, and your family with you will bear the guilt of the sanctuary, and you and your sons with you will bear the guilt of your priesthood.

But you with your sons will keep your priesthood to perform your priestly duties for everything at the altar and for {the area behind the curtain}. I give you the priesthood as a gift, but the stranger who approaches will be put to death."

and it will be for him and his {offspring} after him a covenant of an eternal priesthood because he was jealous for his God and made atonement for the {Israelites}.'"

The Levites among you have no portion, for their inheritance [is] the priesthood of Yahweh; Gad, Reuben, and the half-tribe of Manasseh received their inheritance beyond the Jordan to the east, which Moses Yahweh's servant gave to them."

These sought their record in the genealogy [records], but they were not found, and {were excluded from the priesthood as unclean}.

These sought their record among those enrolled in the genealogy, but it was not found there, so they were excluded as unclean from the priesthood.

Remember them, my God, because of their defilements of the priesthood and the covenant of the priesthood and the Levites.

according to the custom of the priesthood he was chosen by lot to enter into the temple of the Lord to burn incense.

And indeed those of the sons of Levi who receive the priesthood have a commandment to collect a tenth from the people according to the law, that is, from their brothers, although {they are descended from Abraham}.

Thus if perfection was through the Levitical priesthood, for on the basis of it the people received the law, what further need [is there] for another priest to arise according to the order of Melchizedek and not said to be according to the order of Aaron?

For [when] the priesthood changes, of necessity there is a change of the law also.

but he, because he continues {forever}, holds the priesthood permanently.

And [you] yourselves, as living stones, are being built up [as] a spiritual house for a holy priesthood, to offer up spiritual sacrifices acceptable to God through Jesus Christ.

But you [are] a chosen race, a royal priesthood, a holy nation, a people for [God's] possession, so that you may proclaim the virtues of the one who called you out of darkness into his marvelous light,