Numbers 16:40

to be a memorial to the children of Israel, to the end that no stranger, who isn't of the seed of Aaron, comes near to burn incense before the LORD; that he not be as Korah, and as his company: as the LORD spoke to him by Moses.

Numbers 3:10

And you shall appoint Aaron and his sons, and they shall attend to their priesthood. The stranger who comes near shall be put to death."

Exodus 30:7-10

Aaron shall burn incense of sweet spices on it every morning. When he tends the lamps, he shall burn it.

Leviticus 22:10

"'No stranger shall eat of the holy thing: a foreigner living with the priests, or a hired servant, shall not eat of the holy thing.

Numbers 1:51

When the tabernacle is to move, the Levites shall take it down; and when the tabernacle is to be set up, the Levites shall set it up. The stranger who comes near shall be put to death.

Numbers 3:38

Those who encamp before the tabernacle eastward, in front of the Tent of Meeting toward the sunrise, shall be Moses, and Aaron and his sons, keeping the requirements of the sanctuary for the duty of the children of Israel. The stranger who comes near shall be put to death.

Numbers 18:4-7

They shall be joined to you, and keep the responsibility of the Tent of Meeting, for all the service of the Tent: and a stranger shall not come near to you.

1 Kings 13:1-3

Behold, there came a man of God out of Judah by the word of the LORD to Beth El: and Jeroboam was standing by the altar to burn incense.

2 Chronicles 26:16-21

But when he was strong, his heart was lifted up, so that he did corruptly, and he trespassed against the LORD his God; for he went into the LORD's temple to burn incense on the altar of incense.

Jude 1:11

Woe to them. For they went in the way of Cain, and ran riotously in the error of Balaam for profit, and perished in Korah's rebellion.

Treasury of Scripture Knowledge

Summary

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

Bible References

That no

Numbers 3:10
And you shall appoint Aaron and his sons, and they shall attend to their priesthood. The stranger who comes near shall be put to death."
Numbers 18:4
They shall be joined to you, and keep the responsibility of the Tent of Meeting, for all the service of the Tent: and a stranger shall not come near to you.
Leviticus 22:10
"'No stranger shall eat of the holy thing: a foreigner living with the priests, or a hired servant, shall not eat of the holy thing.
2 Chronicles 26:18
and they resisted Uzziah the king, and said to him, "It isn't for you, Uzziah, to burn incense to the LORD, but for the priests the sons of Aaron, who are consecrated to burn incense. Go out of the sanctuary; for you have trespassed; neither shall it be for your honor from the LORD God."
Jude 1:11
Woe to them. For they went in the way of Cain, and ran riotously in the error of Balaam for profit, and perished in Korah's rebellion.

Come near

1 Kings 13:1
Behold, there came a man of God out of Judah by the word of the LORD to Beth El: and Jeroboam was standing by the altar to burn incense.
2 Chronicles 26:16
But when he was strong, his heart was lifted up, so that he did corruptly, and he trespassed against the LORD his God; for he went into the LORD's temple to burn incense on the altar of incense.

General references

Numbers 16:6
Do this: take censers, Korah, and all his company;
Psalm 106:18
A fire was kindled in their company. The flame burned up the wicked.
Psalm 115:10
House of Aaron, trust in the LORD. He is their help and their shield.
Hebrews 5:4
Nobody takes this honor on himself, but he is called by God, just like Aaron was.