Numbers 18:7

And thou and thy sons with thee shall keep your priesthood for everything of the altar, and for that within the veil, and ye shall serve. I give you the priesthood as a service of gift. And the stranger who comes near shall be put

Numbers 3:10

And thou shall appoint Aaron and his sons, and they shall keep their priesthood. And the stranger who comes near shall be put to death.

Exodus 29:9

And thou shall gird them with sashes, Aaron and his sons, and bind head-coverings on them. And they shall have the priesthood by a perpetual statute. And thou shall consecrate Aaron and his sons.

Leviticus 16:2

and LORD said to Moses, Speak to Aaron thy brother, that he not come at all times into the holy place within the veil, before the mercy-seat which is upon the ark, that he not die, for I will appear in the cloud upon the mercy-seat

Leviticus 16:12-14

And he shall take a censer full of coals of fire from off the altar before LORD, and his hands full of sweet incense beaten small, and bring it within the veil.

Numbers 1:51

And when the tabernacle sets forward, the Levites shall take it down, and when the tabernacle is to be pitched, the Levites shall set it up. And the stranger who comes near shall be put to death.

Numbers 3:38

And those who encamp before the tabernacle eastward, before the tent of meeting toward the sunrise, shall be Moses, and Aaron and his sons, keeping the charge of the sanctuary for the charge of the sons of Israel. And the stranger

Numbers 16:5-7

And he spoke to Korah and to all his company, saying, In the morning LORD will show who are his, and who is holy, and will cause him to come near to him, even him whom he shall choose will he cause to come near to him.

Numbers 16:40

to be a memorial to the sons of Israel, to the end that no stranger, who is not of the seed of Aaron, come near to burn incense before LORD, that he not be as Korah, and as his company, as LORD spoke to him by Moses.

Numbers 18:4-5

And they shall be joined to thee, and keep the charge of the tent of meeting, for all the service of the tent, and a stranger shall not come near to you.

Numbers 18:20

And LORD said to Aaron, Thou shall have no inheritance in their land, neither shall thou have any portion among them. I am thy portion and thine inheritance among the sons of Israel.

1 Samuel 2:28

And did I choose him out of all the tribes of Israel to be my priest, to go up to my altar, to burn incense, to wear an ephod before me? And did I give to the house of thy father all the offerings of the sons of Israel made by fire

John 3:27

John answered and said, A man can receive nothing unless it is given to him from heaven.

Romans 15:15-16

But I wrote more boldly to you, brothers, in part, as reminding you because of the grace that was given to me by God,

Ephesians 3:8

To me, a man less than the least of all the sanctified, this grace was given to preach good-news among the Gentiles, the unsearchable wealth of Christ,

Hebrews 5:4

And not any man takes the honor to himself, but being called by God, just as also Aaron.

Hebrews 9:3-6

And behind the second curtain, the tabernacle called the Holy of holies,

Treasury of Scripture Knowledge

Summary

Therefore thou and thy sons with thee shall keep your priest's office for every thing of the altar, and within the vail; and ye shall serve: I have given your priest's office unto you as a service of gift: and the stranger that cometh nigh shall be put to death.

Therefore thou

Bible References

Therefore thou

Numbers 18:5
And ye shall keep the charge of the sanctuary, and the charge of the altar, that there be no more wrath upon the sons of Israel.
Numbers 3:10
And thou shall appoint Aaron and his sons, and they shall keep their priesthood. And the stranger who comes near shall be put to death.

Within

Leviticus 16:2
and LORD said to Moses, Speak to Aaron thy brother, that he not come at all times into the holy place within the veil, before the mercy-seat which is upon the ark, that he not die, for I will appear in the cloud upon the mercy-seat
Hebrews 9:3
And behind the second curtain, the tabernacle called the Holy of holies,

As a service

Numbers 16:5
And he spoke to Korah and to all his company, saying, In the morning LORD will show who are his, and who is holy, and will cause him to come near to him, even him whom he shall choose will he cause to come near to him.
1 Samuel 2:28
And did I choose him out of all the tribes of Israel to be my priest, to go up to my altar, to burn incense, to wear an ephod before me? And did I give to the house of thy father all the offerings of the sons of Israel made by fire
John 3:27
John answered and said, A man can receive nothing unless it is given to him from heaven.
Romans 15:15
But I wrote more boldly to you, brothers, in part, as reminding you because of the grace that was given to me by God,
Ephesians 3:8
To me, a man less than the least of all the sanctified, this grace was given to preach good-news among the Gentiles, the unsearchable wealth of Christ,
Hebrews 5:4
And not any man takes the honor to himself, but being called by God, just as also Aaron.

The stranger

Numbers 18:4
And they shall be joined to thee, and keep the charge of the tent of meeting, for all the service of the tent, and a stranger shall not come near to you.
Numbers 3:38
And those who encamp before the tabernacle eastward, before the tent of meeting toward the sunrise, shall be Moses, and Aaron and his sons, keeping the charge of the sanctuary for the charge of the sons of Israel. And the stranger
Numbers 16:40
to be a memorial to the sons of Israel, to the end that no stranger, who is not of the seed of Aaron, come near to burn incense before LORD, that he not be as Korah, and as his company, as LORD spoke to him by Moses.

General references

Numbers 3:9
And thou shall give the Levites to Aaron and to his sons. They are wholly given to him on the behalf of the sons of Israel.
Numbers 17:3
And thou shall write Aaron's name upon the rod of Levi, for there shall be one rod for each head of their fathers' houses.
Psalm 115:10
O house of Aaron, trust ye in LORD. He is their help and their shield.