Leviticus 16:2

The Lord said to Moses, Say to Aaron, your brother, that he may not come at all times into the holy place inside the veil, before the cover which is on the ark, for fear that death may overtake him; for I will be seen in the cloud on the cover of the ark.

Exodus 30:10

And once every year Aaron is to make its horns clean: with the blood of the sin-offering he is to make it clean once every year from generation to generation: it is most holy to the Lord.

1 Kings 8:10-12

Now when the priests had come out of the holy place, the house of the Lord was full of the cloud,

Exodus 40:34-35

Then the cloud came down covering the Tent of meeting, and the House was full of the glory of the Lord;

Hebrews 9:25

And he did not have to make an offering of himself again and again, as the high priest goes into the holy place every year with blood which is not his;

Hebrews 10:19-20

So then, my brothers, being able to go into the holy place without fear, because of the blood of Jesus,

Exodus 25:17-22

And you are to make a cover of the best gold, two and a half cubits long and a cubit and a half wide.

Exodus 26:33-34

And you are to put up the veil under the hooks, and put inside it the ark of the law: the veil is to be a division between the holy place and the most holy.

Exodus 40:20-21

And he took the law and put it inside the ark, and put the rods at its side and the cover over it;

Leviticus 8:35

And you are to keep watch for the Lord at the door of the Tent of meeting day and night for seven days, so that death may not come to you: for so he has given me orders.

Leviticus 16:13

And let him put the perfume on the fire before the Lord so that the ark may be covered with a cloud of the smoke of the perfume, in order that death may not overtake him.

Leviticus 23:27

The tenth day of this seventh month is the day for the taking away of sin; let it be a holy day of worship; you are to keep from pleasure, and give to the Lord an offering made by fire.

Numbers 4:19

But do this to them, so that life and not death may be theirs when they come near the most holy things; let Aaron and his sons go in and give to every one his work and that which he is to take up;

Numbers 17:10

And the Lord said to Moses, Put Aaron's rod back in front of the ark of witness, to be kept for a sign against this false-hearted people, so that you may put a stop to their outcries against me, and death may not overtake them.

1 Kings 8:6

And the priests took the ark of the agreement of the Lord and put it in its place in the inner room of the house, in the most holy place, under the wings of the winged ones.

2 Chronicles 5:14

So that the priests were not able to keep their places to do their work because of the cloud; for the house of God was full of the glory of the Lord.

Matthew 27:51

And the curtain of the Temple was parted in two from end to end; and there was an earth-shock; and the rocks were broken;

Hebrews 4:14-16

Having then a great high priest, who has made his way through the heavens, even Jesus the Son of God, let us be strong in our faith.

Hebrews 9:3

And inside the second veil was the place which is named the Holy of holies;

Hebrews 9:7-8

But only the high priest went into the second, once a year, not without making an offering of blood for himself and for the errors of the people:

Treasury of Scripture Knowledge

Summary

And the LORD said unto Moses, Speak unto Aaron thy brother, that he come not at all times into the holy place within the vail before the mercy seat, which is upon the ark; that he die not: for I will appear in the cloud upon the mercy seat.

The mercy seat

General references

Bible References

He come not

Leviticus 23:27
The tenth day of this seventh month is the day for the taking away of sin; let it be a holy day of worship; you are to keep from pleasure, and give to the Lord an offering made by fire.
Exodus 26:33
And you are to put up the veil under the hooks, and put inside it the ark of the law: the veil is to be a division between the holy place and the most holy.
Exodus 30:10
And once every year Aaron is to make its horns clean: with the blood of the sin-offering he is to make it clean once every year from generation to generation: it is most holy to the Lord.
Exodus 40:20
And he took the law and put it inside the ark, and put the rods at its side and the cover over it;
1 Kings 8:6
And the priests took the ark of the agreement of the Lord and put it in its place in the inner room of the house, in the most holy place, under the wings of the winged ones.
Hebrews 9:3
And inside the second veil was the place which is named the Holy of holies;
Hebrews 10:19
So then, my brothers, being able to go into the holy place without fear, because of the blood of Jesus,

That he die not

Leviticus 16:13
And let him put the perfume on the fire before the Lord so that the ark may be covered with a cloud of the smoke of the perfume, in order that death may not overtake him.
Leviticus 8:35
And you are to keep watch for the Lord at the door of the Tent of meeting day and night for seven days, so that death may not come to you: for so he has given me orders.
Numbers 4:19
But do this to them, so that life and not death may be theirs when they come near the most holy things; let Aaron and his sons go in and give to every one his work and that which he is to take up;
Numbers 17:10
And the Lord said to Moses, Put Aaron's rod back in front of the ark of witness, to be kept for a sign against this false-hearted people, so that you may put a stop to their outcries against me, and death may not overtake them.
Matthew 27:51
And the curtain of the Temple was parted in two from end to end; and there was an earth-shock; and the rocks were broken;
Hebrews 4:14
Having then a great high priest, who has made his way through the heavens, even Jesus the Son of God, let us be strong in our faith.
Hebrews 10:19
So then, my brothers, being able to go into the holy place without fear, because of the blood of Jesus,

In the cloud

Exodus 40:34
Then the cloud came down covering the Tent of meeting, and the House was full of the glory of the Lord;
1 Kings 8:10
Now when the priests had come out of the holy place, the house of the Lord was full of the cloud,
2 Chronicles 5:14
So that the priests were not able to keep their places to do their work because of the cloud; for the house of God was full of the glory of the Lord.

The mercy seat

Exodus 25:17
And you are to make a cover of the best gold, two and a half cubits long and a cubit and a half wide.

General references

Exodus 40:35
So that Moses was not able to go into the Tent of meeting, because the cloud was resting on it, and the House was full of the glory of the Lord.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain