Lets look into the book of Hebrews on the instances of Most Holy Place and Holy Place:
Hebrews 9
2 For there was a tabernacle made; the first, wherein [was] the candlestick, and the table, and the shewbread; which is called the sanctuary.
3 And after the second veil, the tabernacle which is called the Holiest of all (39 39);
39 39: Hagion hagion: holy of holy
Fine. No problem here.
7 But into the second [went] the high priest alone once every year, not without blood, which he offered for himself, and [for] the errors of the people:
8 The Holy Ghost this signifying, that the way into the holiest of all (39) was not yet made manifest, while as the first tabernacle was yet standing:
39 Hagion: holy place.
Here the Greek is hagion. This is a serious problem. By its content, vs8 is clear the MHP, but the Greek text is HP. This is inconsistent.
12 Neither by the blood of goats and calves, but by his own blood he entered in once into the holy place (39), having obtained eternal redemption [for us].
39: hagion: holy place
Vs12 strongly suggests here the room is MHP. Another problem with the inconsistent Greek text.
24 For Christ is not entered into the holy places (39) made with hands, [which are] the figures of the true; but into heaven itself, now to appear in the presence of God for us:
39: hagion: holy place
Another problem here. The Greek text should have been hagion hagion.
25 Nor yet that he should offer himself often, as the high priest entereth into the holy place (39) every year with blood of others;
39: hagion: Holy Place
Again, the high priest enters the Most Holy Place. So Greek here should have been hagion hagion. Another textual problem.
Hebrews 10:19 Having therefore, brethren, boldness to enter into the holiest(39) by the blood of Jesus,
39: hagion
Here again the Greek is hagion while the text clearly shows the room is MHP. It should have been hagion hagio.
I checked other instance in the Greek where HP and MHP appeared.
Matthew 24:15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place (39), (whoso readeth, let him understand)
39: hagion: holy place.
No problems here.
Jude 1:20 But ye, beloved, building up yourselves on your most holy (40) faith, praying in the Holy Ghost,
40 hagios: most holy.
Interestingly here the strongs number is 40: hagios.
Unfortunately these two are not a large enough sample size to make a definitive conclusion to say about the usage of the word in Hebrews.
My theory for this inconsistency is that the book of Hebrews was originally written in Aramaic. There’re not enough evidence to strongly support this. However I think this is a possibility. My next step would be checking the Syriac Pershitta, the Aramaic New Testament to see what words where used in the book of Hebrews.
Let me give out my strongest caution here to those might consider it. There is no evidence that the Aramaic NT text is superior to the Greek. So only use this as a reference.
I remember Tall73 said we can not use word-for-word method to determine the precise translation. Then I’m lost with the grammar and what not. And I doubt we need to be experts of the original language to be able to understand the Bible.
While I can’t offer a definitive conclusion on the textual problems, I’m confident that Hebrews itself does not nullify the 1844 investigative judgment. In fact it confirms it.
Notice the author of Hebrews did not dismiss the annual atonement service where the high priest entered once a year into the MHP (Heb 9:1-7). It confirms and uses it as a type for the heavenly to be purified (vs 23).
However, we see clearly, the author of Hebrews was trying the persuade the new Hebrew Christians away from the earth sacrificial service and get them to focus on Jesus’ heavenly ministry which was ratified by His blood and inaugurated upon His ascension.
Hope this address some of the issues.