Hebrews 9:25

nor to offer Himself often, as the high-priest entereth into the holy of holies every year with the blood of others;

Hebrews 10:19-20

Having therefore, brethren, free admission into the holy places by the blood of Jesus,

Matthew 27:51

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

Hebrews 4:14-16

Having therefore a great high-priest, that is passed into the heavens, even Jesus the Son of God, let us hold fast our profession:

Hebrews 9:3

And beyond the second veil, the tabernacle which is called the Holy of holies, having the golden censer,

Hebrews 9:7-8

but into the second only the high-priest went once a year; and that not without blood, which he offered for himself, and for the sins of the people committed through ignorance.

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 beyond the second veil, the tabernacle which is called the Holy of holies, having the golden censer,
Hebrews 10:19
Having therefore, brethren, free admission 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 the top to the bottom, and the earth was shaken, and the rocks were split:
Hebrews 4:14
Having therefore a great high-priest, that is passed into the heavens, even Jesus the Son of God, let us hold fast our profession:
Hebrews 10:19
Having therefore, brethren, free admission into the holy places by the blood of Jesus,