Numbers 4:20

The Kohathites are not to go in and look at the holy objects, even for a moment, or they will die.”

Exodus 19:21

The Lord directed Moses, “Go down and warn the people not to break through to see the Lord; otherwise many of them will die.

1 Samuel 6:19

God struck down the men of Beth-shemesh because they looked inside the ark of the Lord. He struck down 70 men out of 50,000 men. The people mourned because the Lord struck them with a great slaughter.

Leviticus 10:2

Then fire came from the Lord and burned them to death before the Lord.

Numbers 4:15

“Aaron and his sons are to finish covering the holy objects and all their equipment whenever the camp is to move on. The Kohathites will come and carry them, but they are not to touch the holy objects or they will die. These are the transportation duties of the Kohathites regarding the tent of meeting.

Numbers 4:19

Do this for them so that they may live and not die when they come near the most holy objects: Aaron and his sons are to go in and assign each man his task and transportation duty.

Hebrews 10:19-20

Therefore, brothers, since we have boldness to enter the sanctuary through the blood of Jesus,

Revelation 11:19

God’s sanctuary in heaven was opened, and the ark of His covenant appeared in His sanctuary. There were flashes of lightning, rumblings of thunder, an earthquake, and severe hail.

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
“Aaron and his sons are to finish covering the holy objects and all their equipment whenever the camp is to move on. The Kohathites will come and carry them, but they are not to touch the holy objects or they will die. These are the transportation duties of the Kohathites regarding the tent of meeting.
Exodus 19:21
The Lord directed Moses, “Go down and warn the people not to break through to see the Lord; otherwise many of them will die.
Leviticus 10:2
Then fire came from the Lord and burned them to death before the Lord.
1 Samuel 6:19
God struck down the men of Beth-shemesh because they looked inside the ark of the Lord. He struck down 70 men out of 50,000 men. The people mourned because the Lord struck them with a great slaughter.
Hebrews 10:19
Therefore, brothers, since we have boldness to enter the sanctuary through the blood of Jesus,
Revelation 11:19
God’s sanctuary in heaven was opened, and the ark of His covenant appeared in His sanctuary. There were flashes of lightning, rumblings of thunder, an earthquake, and severe hail.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.