Numbers 3:10

And Aaron and his sons shalt thou appoint that they may attend to their priest's office; and the stranger that cometh near shall be put to death.

Numbers 1:51

and when the tabernacle setteth forward, the Levites shall take it down; and when the tabernacle encampeth, the Levites shall set it up; and the stranger that cometh near shall be put to death.

Numbers 3:38

And those who encamped before the tabernacle eastward, before the tent of meeting toward the sunrising, were Moses, and Aaron and his sons, who kept the charge of the sanctuary for the charge of the children of Israel; and the stranger that cometh near shall be put to death.

Numbers 18:7

But thou and thy sons with thee shall attend to your priesthood for all that concerneth the altar, and for that which is inside the veil; and ye shall perform the service: I give you your priesthood as a service of gift, and the stranger that cometh near shall be put to death.

Romans 12:7

or service, let us occupy ourselves in service; or he that teaches, in teaching;

Exodus 29:9

And thou shalt gird them with the girdle Aaron and his sons, and bind the high caps on them; and the priesthood shall be theirs for an everlasting statute; and thou shalt consecrate Aaron and his sons.

Numbers 16:35

And there came out a fire from Jehovah, and consumed the two hundred and fifty men that had presented incense.

Numbers 16:40

as a memorial to the children of Israel, that no stranger who is not of the seed of Aaron come near to burn incense before Jehovah, that he be not as Korah, and as his band, as Jehovah had said to him through Moses.

Numbers 18:3

And they shall keep thy charge, and the charge of the whole tent: only they shall not come near to the vessels of the sanctuary and to the altar, that they may not die, and you as well as they.

1 Samuel 6:19

And he smote among the men of Beth-shemesh, because they had looked into the ark of Jehovah, and smote of the people seventy men; and the people lamented, because Jehovah had smitten the people with a great slaughter.

2 Samuel 6:7

And the anger of Jehovah was kindled against Uzzah; and God smote him there for his error; and there he died by the ark of God.

1 Chronicles 6:32

And they ministered before the tabernacle of the tent of meeting with singing, until Solomon had built the house of Jehovah in Jerusalem; and they attended to their office according to their order.

2 Chronicles 26:16-21

But when he became strong his heart was lifted up to his downfall; and he transgressed against Jehovah his God, and went into the temple of Jehovah to burn incense upon the altar of incense.

Ezekiel 44:8

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

Acts 6:3-4

Look out therefore, brethren, from among yourselves seven men, well reported of, full of the Holy Spirit and wisdom, whom we will establish over this business:

Ephesians 2:19

So then ye are no longer strangers and foreigners, but ye are fellow-citizens of the saints, and of the household of God,

1 Timothy 4:15-16

Occupy thyself with these things; be wholly in them, that thy progress may be manifest to all.

Hebrews 8:4

If then indeed he were upon earth, he would not even be a priest, there being those who offer the gifts according to the law,

Hebrews 10:19-22

Having therefore, brethren, boldness for entering into the holy of holies 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
But thou and thy sons with thee shall attend to your priesthood for all that concerneth the altar, and for that which is inside the veil; and ye shall perform the service: I give you your priesthood as a service of gift, and the stranger that cometh near shall be put to death.
1 Chronicles 6:32
And they ministered before the tabernacle of the tent of meeting with singing, until Solomon had built the house of Jehovah in Jerusalem; and they attended to their office according to their order.
Ezekiel 44:8
And ye have not kept the charge of my holy things, but have set keepers of my charge in my sanctuary for yourselves.
Acts 6:3
Look out therefore, brethren, from among yourselves seven men, well reported of, full of the Holy Spirit and wisdom, whom we will establish over this business:
Romans 12:7
or service, let us occupy ourselves in service; or he that teaches, in teaching;
1 Timothy 4:15
Occupy thyself with these things; be wholly in them, that thy progress may be manifest to all.

And the stranger

Numbers 3:38
And those who encamped before the tabernacle eastward, before the tent of meeting toward the sunrising, were Moses, and Aaron and his sons, who kept the charge of the sanctuary for the charge of the children of Israel; and the stranger that cometh near shall be put to death.
Numbers 1:51
and when the tabernacle setteth forward, the Levites shall take it down; and when the tabernacle encampeth, the Levites shall set it up; and the stranger that cometh near shall be put to death.
Numbers 16:35
And there came out a fire from Jehovah, and consumed the two hundred and fifty men that had presented incense.
Numbers 18:3
And they shall keep thy charge, and the charge of the whole tent: only they shall not come near to the vessels of the sanctuary and to the altar, that they may not die, and you as well as they.
1 Samuel 6:19
And he smote among the men of Beth-shemesh, because they had looked into the ark of Jehovah, and smote of the people seventy men; and the people lamented, because Jehovah had smitten the people with a great slaughter.
2 Samuel 6:7
And the anger of Jehovah was kindled against Uzzah; and God smote him there for his error; and there he died by the ark of God.
2 Chronicles 26:16
But when he became strong his heart was lifted up to his downfall; and he transgressed against Jehovah his God, and went into the temple of Jehovah to burn incense upon the altar of incense.
Ephesians 2:19
So then ye are no longer strangers and foreigners, but ye are fellow-citizens of the saints, and of the household of God,
Hebrews 8:4
If then indeed he were upon earth, he would not even be a priest, there being those who offer the gifts according to the law,
Hebrews 10:19
Having therefore, brethren, boldness for entering into the holy of holies by the blood of Jesus,

General references

Deuteronomy 18:5
for Jehovah thy God hath chosen him out of all thy tribes, that he may stand to serve in the name of Jehovah, he and his sons continually.