Numbers 3:10

And thou shalt appoint Aaron and his sons that they shall guard their priesthood; and the stranger that comes near shall be put to death.

Numbers 1:51

And when the tabernacle departs, the Levites shall take it down; and when the tabernacle is to be pitched, the Levites shall set it up; and the stranger that comes near shall be put to death.

Numbers 3:38

And those that encamp before the tabernacle toward the east, before the tabernacle of the testimony towards 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 that comes near shall be put to death.

Numbers 18:7

Therefore thou and thy sons with thee shall keep your priesthood for every thing of the altar and within the veil, and ye shall minister; for I have given the service of your priesthood as a gift, and the stranger that comes near shall die.

Romans 12:7

or ministry, in serving; or he that teaches, in doctrine;

Exodus 29:9

And thou shalt gird them with girdles, Aaron and his sons, and bind the tiaras on them; and the priest's office shall be theirs for a perpetual statute; and thou shalt fill the hands Aaron and his sons.

Numbers 16:35

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

Numbers 16:40

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

Numbers 18:3

And they shall keep thy charge, and the charge of all the tabernacle; only they shall not come near the holy vessels or the altar, that neither they, nor ye also, die.

1 Samuel 6:19

Then God smote those of Bethshemesh because they had looked at the ark of the LORD; he smote fifty thousand of the people and seventy principal men. And the people lamented because the LORD had smitten the people with such a great slaughter.

2 Samuel 6:7

And the anger of the LORD was kindled against Uzzah, and God smote him there for his effrontery, and there he died by the ark of God.

1 Chronicles 6:32

And they served before the tent of the tabernacle of the testimony with singing until Solomon had built the house of the LORD in Jerusalem, and then they remained in their ministry according to their right.

2 Chronicles 26:16-21

But when he was strengthened, his heart lifted itself up unto corruption, for he rebelled against the LORD his God, entering into the temple of the LORD to burn incense upon the altar of incense.

Ezekiel 44:8

And ye have not kept the charge of my holy things; but ye have set keepers of my charge in my sanctuary for yourselves.

Acts 6:3-4

therefore, brethren, seek out among you seven men of whom you bear witness, full of the Holy Spirit and wisdom, whom we may appoint over this business.

Ephesians 2:19

Now therefore ye are no longer strangers and foreigners, but fellowcitizens with the saints and of the household of God,

1 Timothy 4:15-16

Occupy thyself in these things with care, for in this is everything, that thy profiting may be manifest unto all.

Hebrews 8:4

For if he were on earth, he should not even be a priest, being present still the other priests that offer gifts according to the law,

Hebrews 10:19-22

Having therefore, brethren, boldness to enter into the sanctuary by the blood of Jesus,

Treasury of Scripture Knowledge

Summary

And thou shalt appoint Aaron and his sons, and they shall wait on their priest's office: and the stranger that cometh nigh shall be put to death.

General references

Bible References

They shall

Numbers 18:7
Therefore thou and thy sons with thee shall keep your priesthood for every thing of the altar and within the veil, and ye shall minister; for I have given the service of your priesthood as a gift, and the stranger that comes near shall die.
1 Chronicles 6:32
And they served before the tent of the tabernacle of the testimony with singing until Solomon had built the house of the LORD in Jerusalem, and then they remained in their ministry according to their right.
Ezekiel 44:8
And ye have not kept the charge of my holy things; but ye have set keepers of my charge in my sanctuary for yourselves.
Acts 6:3
therefore, brethren, seek out among you seven men of whom you bear witness, full of the Holy Spirit and wisdom, whom we may appoint over this business.
Romans 12:7
or ministry, in serving; or he that teaches, in doctrine;
1 Timothy 4:15
Occupy thyself in these things with care, for in this is everything, that thy profiting may be manifest unto all.

And the stranger

Numbers 3:38
And those that encamp before the tabernacle toward the east, before the tabernacle of the testimony towards 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 that comes near shall be put to death.
Numbers 1:51
And when the tabernacle departs, the Levites shall take it down; and when the tabernacle is to be pitched, the Levites shall set it up; and the stranger that comes near shall be put to death.
Numbers 16:35
And fire came out from the LORD and consumed the two hundred and fifty men that offered incense.
Numbers 18:3
And they shall keep thy charge, and the charge of all the tabernacle; only they shall not come near the holy vessels or the altar, that neither they, nor ye also, die.
1 Samuel 6:19
Then God smote those of Bethshemesh because they had looked at the ark of the LORD; he smote fifty thousand of the people and seventy principal men. And the people lamented because the LORD had smitten the people with such a great slaughter.
2 Samuel 6:7
And the anger of the LORD was kindled against Uzzah, and God smote him there for his effrontery, and there he died by the ark of God.
2 Chronicles 26:16
But when he was strengthened, his heart lifted itself up unto corruption, for he rebelled against the LORD his God, entering into the temple of the LORD to burn incense upon the altar of incense.
Ephesians 2:19
Now therefore ye are no longer strangers and foreigners, but fellowcitizens with the saints and of the household of God,
Hebrews 8:4
For if he were on earth, he should not even be a priest, being present still the other priests that offer gifts according to the law,
Hebrews 10:19
Having therefore, brethren, boldness to enter into the sanctuary by the blood of Jesus,

General references

Deuteronomy 18:5
for the LORD thy God has chosen him out of all thy tribes to stand to minister unto the name of the LORD, him and his sons all the days.