Numbers 4:20
However the Kohathites must not go in to look at the holy things, even for a moment, or they will die.
Exodus 19:21
Jehovah spoke to Moses: Go down and warn the people. They should not break through to gaze at Jehovah. Many of them would perish.
1 Samuel 6:19
Some of the men of Bethshemesh looked inside the Ark. Jehovah killed seventy of them. This made the people of Bethshemesh very sad.
Leviticus 10:2
A fire flashed from Jehovah and burned them. They died in the presence of Jehovah.
Numbers 4:15
When Aaron and his sons finished covering the holy things and the camp is ready to move, the Kohathites will come to carry all the holy articles. They must never touch the holy things, or they will die. The Kohathites will carry all the things from the tent of meeting.
Numbers 4:19
This is what you must do so that they will not die when they come near the most holy things: Aaron and his sons will go into the holy place and tell each man what he will do and what he will carry.
Hebrews 10:19-20
Having therefore, brothers, boldness to enter into the Holy Place by the blood of Jesus,
Revelation 11:19
The temple of God was opened in heaven. There was seen in his temple the ark of his covenant. And there were lightnings and voices and thunder and an earthquake and great hail.