Numbers 4:20

But the Kohathites are not to go in to watch while the holy things are being covered, or they will die."

Exodus 19:21

The Lord said to Moses, "Go down and solemnly warn the people, lest they force their way through to the Lord to look, and many of them perish.

1 Samuel 6:19

But the Lord struck down some of the people of Beth Shemesh because they had looked into the ark of the Lord; he struck down 50,070 of the men. The people grieved because the Lord had struck the people with a hard blow.

Leviticus 10:2

So fire went out from the presence of the Lord and consumed them so that they died before the Lord.

Numbers 4:15

"When Aaron and his sons have finished covering the sanctuary and all the furnishings of the sanctuary, when the camp is ready to journey, then the Kohathites will come to carry them; but they must not touch any holy thing, or they will die. These are the responsibilities of the Kohathites with the tent of meeting.

Numbers 4:19

but in order that they will live and not die when they approach the most holy things, do this for them: Aaron and his sons will go in and appoint each man to his service and his responsibility.

Hebrews 10:19-20

Therefore, brothers and sisters, since we have confidence to enter the sanctuary by the blood of Jesus,

Revelation 11:19

Then the temple of God in heaven was opened and the ark of his covenant was visible within his temple. And there were flashes of lightning, roaring, crashes of thunder, an earthquake, and a great hailstorm.

Treasury of Scripture Knowledge

Summary

But they shall not go in to see when the holy things are covered, lest they die.

Bible References

They shall

Numbers 4:15
"When Aaron and his sons have finished covering the sanctuary and all the furnishings of the sanctuary, when the camp is ready to journey, then the Kohathites will come to carry them; but they must not touch any holy thing, or they will die. These are the responsibilities of the Kohathites with the tent of meeting.
Exodus 19:21
The Lord said to Moses, "Go down and solemnly warn the people, lest they force their way through to the Lord to look, and many of them perish.
Leviticus 10:2
So fire went out from the presence of the Lord and consumed them so that they died before the Lord.
1 Samuel 6:19
But the Lord struck down some of the people of Beth Shemesh because they had looked into the ark of the Lord; he struck down 50,070 of the men. The people grieved because the Lord had struck the people with a hard blow.
Hebrews 10:19
Therefore, brothers and sisters, since we have confidence to enter the sanctuary by the blood of Jesus,
Revelation 11:19
Then the temple of God in heaven was opened and the ark of his covenant was visible within his temple. And there were flashes of lightning, roaring, crashes of thunder, an earthquake, and a great hailstorm.

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