Numbers 3:10

So you shall appoint Aaron and his sons, and they shall observe and attend to their priesthood; but the layman (non-Levite) who approaches [the holy things] shall be put to death.”

Numbers 1:51

When the tabernacle is to go forward, the Levites shall take it down; and when the tabernacle is to [be set up for] camp, the Levites shall set it up. But the layman (non-Levite) who approaches the tabernacle shall be put to death.

Numbers 3:38

Now those to camp before the tabernacle toward the east, before the Tent of Meeting, toward the sunrise, were to be Moses, and Aaron and his sons, performing the duties of the sanctuary for whatever was required of the Israelites; and the layman (non-Levite) who approached [the sanctuary] was to be put to death.

Numbers 18:7

Therefore you and your sons with you shall attend to your priesthood for everything concerning the altar [of burnt offering and the altar of incense] and [of the Holy of Holies] within the veil, and you are to serve. I am giving you the priesthood as a bestowed service, but the stranger (outsider, layman) who approaches shall be put to death.”

Romans 12:7

if service, in the act of serving; or he who teaches, in the act of teaching;

Exodus 29:9

And you shall wrap them with sashes, Aaron and his sons, and put the [ornamental] caps on them; and the priest’s office shall be theirs by a perpetual statute. So you shall ordain Aaron and his sons.

Numbers 16:35

Fire also came forth from the Lord and consumed the two hundred and fifty men who were offering the incense.

Numbers 16:40

as a reminder to the sons of Israel so that no layman—that is, one who is not of the descendants of Aaron should approach to offer incense before the Lord; so that he will not become like Korah and as his company—just as the Lord had said to him through Moses.

Numbers 18:3

And the Levites shall attend to your duty [as assistants] and to the duties of all the tent (tabernacle); only they shall not approach the articles of the sanctuary and the altar, or both they and you will die.

1 Samuel 6:19

The Lord struck down some of the men of Beth-shemesh because they had looked into the ark of the Lord. He struck down 50,070 men among the people, and the people mourned because the Lord had struck the people with a great slaughter.

2 Samuel 6:7

And the anger of the Lord burned against Uzzah, and God struck him there for his irreverence; and he died there by the ark of God.

1 Chronicles 6:32

They ministered with singing before the tabernacle of the Tent of Meeting, until Solomon had built the Lord’s house (temple) in Jerusalem, performing their service in due order.

2 Chronicles 26:16-21

But when Uzziah became strong, he became so proud [of himself and his accomplishments] that he acted corruptly, and he was unfaithful and sinned against the Lord his God, for he went into the temple of the Lord to burn incense on the altar of incense.

Ezekiel 44:8

And you have not kept charge of My holy things yourselves, but you have chosen foreigners [to please yourselves] and have set them in charge of My sanctuary.”

Acts 6:3-4

Therefore, brothers, choose from among you seven men with good reputations [men of godly character and moral integrity], full of the Spirit and of wisdom, whom we may put in charge of this task.

Ephesians 2:19

So then you are no longer strangers and aliens [outsiders without rights of citizenship], but you are fellow citizens with the saints (God’s people), and are [members] of God’s household,

1 Timothy 4:15-16

Practice and work hard on these things; be absorbed in them [completely occupied in your ministry], so that your progress will be evident to all.

Hebrews 8:4

Now if He were [still living] on earth, He would not be a priest at all, for there are priests who offer the gifts [to God] in accordance with the Law.

Hebrews 10:19-22

Therefore, believers, since we have confidence and full freedom to enter the Holy Place [the place where God dwells] by [means of] 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 you and your sons with you shall attend to your priesthood for everything concerning the altar [of burnt offering and the altar of incense] and [of the Holy of Holies] within the veil, and you are to serve. I am giving you the priesthood as a bestowed service, but the stranger (outsider, layman) who approaches shall be put to death.”
1 Chronicles 6:32
They ministered with singing before the tabernacle of the Tent of Meeting, until Solomon had built the Lord’s house (temple) in Jerusalem, performing their service in due order.
Ezekiel 44:8
And you have not kept charge of My holy things yourselves, but you have chosen foreigners [to please yourselves] and have set them in charge of My sanctuary.”
Acts 6:3
Therefore, brothers, choose from among you seven men with good reputations [men of godly character and moral integrity], full of the Spirit and of wisdom, whom we may put in charge of this task.
Romans 12:7
if service, in the act of serving; or he who teaches, in the act of teaching;
1 Timothy 4:15
Practice and work hard on these things; be absorbed in them [completely occupied in your ministry], so that your progress will be evident to all.

And the stranger

Numbers 3:38
Now those to camp before the tabernacle toward the east, before the Tent of Meeting, toward the sunrise, were to be Moses, and Aaron and his sons, performing the duties of the sanctuary for whatever was required of the Israelites; and the layman (non-Levite) who approached [the sanctuary] was to be put to death.
Numbers 1:51
When the tabernacle is to go forward, the Levites shall take it down; and when the tabernacle is to [be set up for] camp, the Levites shall set it up. But the layman (non-Levite) who approaches the tabernacle shall be put to death.
Numbers 16:35
Fire also came forth from the Lord and consumed the two hundred and fifty men who were offering the incense.
Numbers 18:3
And the Levites shall attend to your duty [as assistants] and to the duties of all the tent (tabernacle); only they shall not approach the articles of the sanctuary and the altar, or both they and you will die.
1 Samuel 6:19
The Lord struck down some of the men of Beth-shemesh because they had looked into the ark of the Lord. He struck down 50,070 men among the people, and the people mourned because the Lord had struck the people with a great slaughter.
2 Samuel 6:7
And the anger of the Lord burned against Uzzah, and God struck him there for his irreverence; and he died there by the ark of God.
2 Chronicles 26:16
But when Uzziah became strong, he became so proud [of himself and his accomplishments] that he acted corruptly, and he was unfaithful and sinned against the Lord his God, for he went into the temple of the Lord to burn incense on the altar of incense.
Ephesians 2:19
So then you are no longer strangers and aliens [outsiders without rights of citizenship], but you are fellow citizens with the saints (God’s people), and are [members] of God’s household,
Hebrews 8:4
Now if He were [still living] on earth, He would not be a priest at all, for there are priests who offer the gifts [to God] in accordance with the Law.
Hebrews 10:19
Therefore, believers, since we have confidence and full freedom to enter the Holy Place [the place where God dwells] by [means of] the blood of Jesus,

General references

Deuteronomy 18:5
For the Lord your God has chosen him, him and his sons from all your tribes, to stand and serve in the name of the Lord forever.