Hebrews 9:3

And behind the second veil was a sacred tent called the Holy of holies.

Matthew 27:51

Immediately the curtain of the Sanctuary was torn in two from top to bottom: the earth quaked; the rocks split;

Hebrews 6:19

That hope we have as an anchor of the soul--an anchor that can neither break nor drag. It passes in behind the veil,

Hebrews 9:8

And the lesson which the Holy Spirit teaches is this--that the way into the true Holy place is not yet open so long as the outer tent still remains in existence.

Hebrews 10:19-20

Since then, brethren, we have free access to the Holy place through the blood of Jesus,

Treasury of Scripture Knowledge

Summary

And after the second veil, the tabernacle which is called the Holiest of all;

Bible References

The second

Hebrews 6:19
That hope we have as an anchor of the soul--an anchor that can neither break nor drag. It passes in behind the veil,
Hebrews 10:20
by the new and ever-living way which He opened up for us through the rending of the veil--that is to say, of His earthly nature--
Matthew 27:51
Immediately the curtain of the Sanctuary was torn in two from top to bottom: the earth quaked; the rocks split;

The holiest

Hebrews 9:8
And the lesson which the Holy Spirit teaches is this--that the way into the true Holy place is not yet open so long as the outer tent still remains in existence.
Hebrews 10:19
Since then, brethren, we have free access to the Holy place through the blood of Jesus,