Hebrews 9:25

nor yet, that He should many times offer Himself, as the high priest enters into the Holies every year with blood not His own;

Hebrews 10:19-20

Having, therefore, brethren, boldness for the entrance into the holy places by the blood of Jesus,

Matthew 27:51

And, behold, the veil of the temple was rent in two, from top to bottom; and the earth was shaken; and the rocks were rent;

Hebrews 4:14-16

Having, therefore, a great High Priest, Who hath passed through the heavens, Jesus, the Son of God, let us hold fast the confession;

Hebrews 9:3

and, after the second veil, a tabernacle which is called the "Holy of Holies:"

Hebrews 9:7-8

but into the second, the high priest alone, once a year, not without blood, which he offers for himself and for the ignorances 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.

Bible References

He come not

Hebrews 9:3
and, after the second veil, a tabernacle which is called the "Holy of Holies:"
Hebrews 10:19
Having, therefore, brethren, boldness for the entrance into the holy places by the blood of Jesus,

That he die not

Matthew 27:51
And, behold, the veil of the temple was rent in two, from top to bottom; and the earth was shaken; and the rocks were rent;
Hebrews 4:14
Having, therefore, a great High Priest, Who hath passed through the heavens, Jesus, the Son of God, let us hold fast the confession;
Hebrews 10:19
Having, therefore, brethren, boldness for the entrance into the holy places by the blood of Jesus,