"25 nor was it that He would offer Himself often, as the high priest enters the holy place year by year with blood that is not his own. 26 Otherwise, He would have needed to suffer often since the foundation of the It says the sanctified person is perfected for all time because sin guilt gets taken away in just one sacrifice of Jesus, not because the sanctified person can't lose the one time sacrifice that takes away sin guilt completely in one shot. This is made even more apparent when we continue reading and we see the author's warning for this very same sanctified person to not trample on and profane the sacrifice by which he was sanctified:
It says WE have been sanctified through the offering of the body of Jesus Christ ONCE FOR ALL. Sanctified ONCE FOR ALL means that the sanctified person can't lose it, hence the ONCE FOR ALL. The person in verse 29 who trampled under the foot the Son of God and regarded as unclean the blood of the covenant and insulted the Spirit of grace who was said to be sanctified or "set apart" (yet willfully sinned after receiving the knowledge of the truth - vs. 26 and drew back to perdition and did not believe to the saving of the soul in vs. 39) is not the same person who has been sanctified ONCE FOR ALL (vs. 10) and PERFECTED FOR ALL TIME (vs. 14)
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29How much severer punishment do you think he will deserve who has trampled under foot the Son of God, and has regarded as unclean the blood of the covenant by which he was sanctified, and has insulted the Spirit of grace?" - Hebrews 10:29
Receiving the knowledge of the truth (vs. 26) does not save a person if there is no heart submission to that knowledge. The punishment will be more severe for those Hebrews who willfully rejected this knowledge and drew back to perdition with their eyes wide open instead of believing to the saving of the soul. Judas Iscariot is a good example of someone who rejected this knowledge, but was never saved.
Of course, osas doesn't allow this sanctified person trampling on Christ to be the same one who was cleansed of sin guilt and made perfect in vs. 10 & 14, so it says this sanctified person must be the fake believing, sanctified
unbeliever in the congregation.
Of course this person who was "set apart" but not saved in (vs. 29) who willfully sinned after receiving the knowledge of the truth (vs. 26) and drew back to perdition and did not believe to the saving of the soul (vs. 39) is not the same person who was cleansed of sin/sanctified/perfected once for all/for all time. (vs. 10,14) Verse 39 is your achilles heel. *But WE are not OF THOSE who draw back to perdition, but OF THOSE who believe to the saving of the soul.
Besides that interpretation so blatantly defying the context, we know from 1 Corinthians 5 and 2 Corinthians 6 that God has in no way shape or form cleanses (sanctifies) fake believers to be yoked with and fellowship with unbelievers.
It's actually your interpretation that blatantly defies the context, as I have shown numerous times and what does 1 Corinthians 5 and 2 Corinthians 6 have to do with Hebrews 10? Not everyone is as obvious about being a fake brother or sister and it may take years to expose them.
I wrote to you in my letter not to associate with sexually immoral people—
10not at all meaning the people of this world who are immoral, or the greedy and swindlers, or idolaters. In that case you would have to leave this world.
11But now I am writing to you that you must not associate with anyone who claims to be a brother or sister
c but is sexually immoral or greedy, an idolater or slanderer, a drunkard or swindler. Do not even eat with such people.
12What business is it of mine to judge those outside the church? Are you not to judge those inside? 13God will judge those outside. “Expel the wicked person from among you.” - 1 Corinthians 5:9-13
"14Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness? 15What harmony is there between Christ and Belial b ? Or what does a believer have in common with an unbeliever? 16What agreement is there between the temple of God and idols? For we are the temple of the living God. As God has said:
“I will live with them
and walk among them,
and I will be their God,
and they will be my people.” c
17Therefore,
“Come out from them
and be separate,
says the Lord.
Touch no unclean thing,
and I will receive you.” - 2 Corinthians 6:14-17
Try getting back to Hebrews 10.
What you haven't done, mailman, is prove the existence of a sanctified unbeliever made clean by God and approved for fellowship with the church--one that doesn't violate the conditions above--to which the author of Hebrews is addressing his warning.
I actually have proved the existence of an unbeliever who was said to be sanctified or "set apart" but is not saved in Hebrews 10. Such a person
willfully sinned after receiving the knowledge of the truth/trampled under foot the Son of God/regarded as unclean the blood of the covenant/insulted the Spirit of grace/drew back to perdition and did not believe to the saving of the soul. *That is not descriptive of those who are born of God. (1 Corinthians 6:11; 1 John 3:9)
You can't use the unbelieving spouse made clean for contact by the believing spouse. That person is declared clean for contact by the believer in his household. They can't fellowship with and be yoked with the church either.
In 1 Corinthians 7:14, Paul used the word "sanctified" to specifically refer to an unbeliever who are "sanctified" or "set apart" by their believing spouse.
(And by this Paul does not mean that they were saved). A non-Christian can be "set apart" from other non-Christians without experiencing salvation as Paul explained, so your argument is moot. 1 Corinthians 6:11 says
not to associate with anyone who claims to be a brother or sister, but is sexually immoral or greedy, an idolater or slanderer, a drunkard or swindler. Do not even eat with such people. Well, not everyone who claims to be a brother or sister (but isn't) doesn't make it so obvious and can continue in what appears to be genuine fellowship for years with genuine believers without being spotted. Judas Iscariot continued with Jesus and the other 11 disciples for 3 years and looked like the real deal, but was eventually exposed as an unbelieving, unclean devil who betrayed Jesus. (John 6:64-71; 13:10-11)
Prove to me that the sanctified person in Hebrews 10:29 is a sanctified fake believer for whom 1 Corinthians 5 and 2 Corinthians 6 does not apply. That's what you have not done yet.
I already have proved that the sanctified person in Hebrews 10:29 is a "set apart" unbeliever and no matter how many times I do prove it, you will continue to tell me that I'm yet to prove it to you because you just don't have eyes to see or ears to hear.
'Sanctified' is a word that you need to let the context dictate it's usage. The word literally means "set apart" and it can apply (and often does) to true believers, but can also apply to objects, places and even people that are not saved. If the word "sanctified" was to be given a broad brushed definition of "saved," then you would have to say that the seventh day was saved (Genesis 2:3), the tabernacle was saved (Exodus 29:43), Moses saved the people after coming down off the mountain (Exodus 19:14), the priests and the Levites saved themselves (1 Chronicles 15:14), the Father saved the Son (John 10:36), the Son saved Himself (John 17:19) the believing spouse saved the unbelieving spouse (2 Corinthians 7:14) and other things that do not line up with scripture. It's time for you to set aside your biased agenda and openly and honestly, consider the truth.