The Holy Ghost this signifying - These services were divinely appointed, and by each of them the Holy Spirit of God is supposed to speak.

The way into the holiest - That full access to God was not the common privilege of the people, while the Mosaic economy subsisted. That the apostle means that it is only by Christ that any man and every man can approach God, is evident from Hebrews 10:19-22, and it is about this, and not about the tabernacle of this world, that he is here discoursing.

I have already observed that the apostle appears to use the word σκηνη, or tabernacle, in the general sense of a dwelling place; and therefore applies it to the temple, which was reputed the house or dwelling place of God, as well as the ancient tabernacle. Therefore, what he speaks here concerning the first tabernacle, may be understood as applying with propriety to the then Jewish temple, as well as to the ancient tabernacle, which, even with all their sacrifices and ceremonies, could not make the way of holiness plain, nor the way to God's favor possible.

Holy Ghost.

Hebrews 3:7 Why (as the Holy Ghost said, To day if you will hear his voice,

Hebrews 10:15 Whereof the Holy Ghost also is a witness to us: for after that he had said before,

Isaiah 63:11 Then he remembered the days of old, Moses, and his people, saying...

Acts 7:51,52 You stiff necked and uncircumcised in heart and ears, you do always resist the Holy Ghost: as your fathers did, so do you...

Acts 28:25 And when they agreed not among themselves, they departed, after that Paul had spoken one word...

Galatians 3:8 And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel to Abraham, saying...

2 Peter 1:21 For the prophecy came not in old time by the will of man: but holy men of God spoke as they were moved by the Holy Ghost.

the way.

Hebrews 9:3 And after the second veil, the tabernacle which is called the Holiest of all;

Hebrews 4:15,16 For we have not an high priest which cannot be touched with the feeling of our infirmities; but was in all points tempted like as we are...

Hebrews 10:19-22 Having therefore, brothers, boldness to enter into the holiest by the blood of Jesus...

John 10:7,9 Then said Jesus to them again, Truly, truly, I say to you, I am the door of the sheep...

John 14:6 Jesus said to him, I am the way, the truth, and the life: no man comes to the Father, but by me.

Ephesians 2:18 For through him we both have access by one Spirit to the Father.

The Essay which Brings up the Rear in this Very Guilty Volume is from The...
The Essay which brings up the rear in this very guilty volume is from the pen of the "Rev. Benjamin Jowett, M.A., [Fellow and Tutor of Balliol College, and] Regius Professor of Greek in the University of Oxford,"--"a gentleman whose high personal character and general respectability seem to give a weight to his words, which assuredly they do not carry of themselves [143] ." His performance is entitled "On the Interpretation of Scripture:" being, in reality, nothing else but a laborious denial of …
John William Burgon—Inspiration and Interpretation

The Holy Spirit in the Passion of Christ.
"Who through the Eternal Spirit offered Himself."--Heb. ix. 14. Thirdly--Let us now trace the work of the Holy Spirit in the suffering, death, resurrection, and exaltation of Christ (see "First" and "Second," pp. 93 and 97). In the Epistle to the Hebrews the apostle asks: "If the blood of goats and calves and the ashes of the heifer sprinkling the unclean, sanctifieth to the purification of the flesh, how much more shall the blood of Christ purge your conscience from dead works?" adding the words: …
Abraham Kuyper—The Work of the Holy Spirit

Christ's Priestly Office
Q-35: HOW DOES CHRIST EXECUTE THE OFFICE OF A PRIEST? A: In his once offering up of himself a sacrifice to satisfy divine justice, and reconcile us to God, and in making continual intercession for us. 'Now once in the end of the world has he appeared to put away sin by the sacrifice of himself.' Heb 9:96. What are the parts of Christ's priestly office? Christ's priestly office has two parts - his satisfaction and intercession. I. His Satisfaction; and this consists of two branches. [1] His active …
Thomas Watson—A Body of Divinity