well for someone who does not believe in apostacy, you would logically reject the proposition that someone may not repent, however Hebrews 6:4-6 mentions in apostacy a point in which there will be no more repentance. Note that it's not God's end that failed, it's the repentance which is mans responsibility.
"For it is impossible for those who were once enlightened, and have tasted the heavenly gift, and have become partakers of the Holy Spirit,
and have tasted the good word of God and the powers of the age to come,
if they fall away, to renew them again to repentance, since they crucify again for themselves the Son of God, and put Him to an open shame."
Hebrews 6:4-6 NKJV
Now what this does not mean is that at any point if someone does have sorrow, that they cannot come back. For God will not break the bruised reed or quench the smoking flax the Bible says. Which means if there is a little fire inside, God will stoke that fire into a burning flame. And if you are broken over your sin, God won't snap you off, but will nurture you into a proper place of fellowship once again, but you must have the sorrow. IF on the other hand you are proud of your sin, and going to Gay Pride parades, living with your homosexual partner in sin, willing to be married. Not at all remorseful over the life of sin. Then scripture is very plain, that by their fruits they will be known. (two versus later, hebrews 6:8 tells that exact illustration) And at some point, like I said, at some point in their apostacy, there is no turning back. God never failed in His promise, but that person has forfeited the eternal security that God offers and had left the harbor of salvation.
I wrote the following three articles on this text, and one on a supporting text:
I have been discussing eternal security of the believer with someone online.
The following articles are the result of that conversation. I hope they are a blessing.
(Please forgive the format, it doesn't transfer when copied, and pasted.)
6:1 Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and of faith toward God, Hebrews
The Apostle says ... 1) "Therefore" When we see the word "therefore", we need to look back to see what it is there for ... 5:12 For when for the time ye ought to be teachers, ye have need that one teach you again which be the first principles of the oracles of God; and are become such as have need of milk, and not of strong meat. 5:13 For every one that useth milk is unskilful in the word of righteousness: for he is a babe. 5:14 But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil. Hebrews The Apostle just spoke of his readers having the need of teachers, when they should be teaching. What's the issue here? Many of the Hebrews suffered with the idea falsely presented by many of the rabbis that obedience to the law of Moses was a necessity for salvation. (This error is even taught by many today. We often hear that those in the Old Testament were "under the law", but we are under grace.) This of course has no truth whatsoever, (as taught by most people). We see this also in the writings of the Apostle Paul in his epistle to the Galatians. 3:3 Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh? Galatians
2) "leaving the principles of the doctrine of Christ" There must be a time when we realize that our salvation is secure in the work of the Godhead. That was the purpose of the "Therefore" starting the chapter. When we spend our entire lives concerned with our own salvation, we spend less time being concerned about the salvation of others. If we are working to keep our salvation secure, there lays in the back of our minds the wonder of whether or not that which we do meets the requirements needed to keep our salvation secure.
3) "let us go on unto perfection" This perfection is nothing other than holiness. God desires that we be holy, as He is holy. Holiness however, is separate from salvation, (as can be seen by the use of the words, "let us go on unto"), and is that which the Apostle desires to "go on unto". Holiness therefore is not part of salvation, but rather that which comes AFTER salvation. (The principle of the doctrine of Christ.)
4) "not laying again the foundation of repentance from dead works, and of faith toward God" The Apostle once again states the problem ... the return to, "laying again the foundation of repentance from dead works, and of faith toward God". When building a home, or other structure; once the foundation has been built, the builders leave that work, and move onto that which rests upon the foundation; but they no longer return to building the foundation ... why? Because, that is a finished work! "of repentance from dead works"
What is "repentance"? Repentance is having a change of mind, and heart. Prior to being "saved" we trust in our works of righteousness to either fully pay, partially pay, or at least in some way to sustain the eternal life we have been given. But this is a gross error. 64:6 But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away. Isaiah 3:5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost; Titus The first words we need to focus on are "he saved us". We do absolutely no works that are, or can be associated with our salvation. Why? Because, any such works would be corrupted by our own sin. That is why we are in need of a Saviour. Hence, no matter how much our works may appear righteous to mankind, they are dead works from God's perspective. Therefore, it is necessary for us to stop trusting in our dead works, and start placing our faith in God to totally save us. ("Repentance from dead works", = principle one, and "faith toward God" = principle two.)
Article Two: 6:1 Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and of faith toward God, 6:2 Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eternal judgment. 6:3 And this will we do, if God permit. Hebrews The purpose of this study is not "basic principles" or "basic doctrines".
The purpose of this study is to examine
1) Who this text was written to; and what is the message, specifically involving verses 4 through 6. I will also touch on verses 7 through 10, as they shed additional light upon the text in question. In my previous comment (verse 1) I broke down verse one, showing that the Apostle had previously told his audience that when they should be teachers, they are yet needing to be taught. As he enters Chapter 6 he has the desire to move on from the basic principles (two of which are named in verse one ... which I briefly expounded upon; and four more listed in verse two, which I feel no need to expound upon). Then in verse three we read, "And this will we do, if God permit." To very briefly summarize, the Apostle is saying, "Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; And this will we do, if God permit." In other words, you should already know your salvation is secure in Christ, so let's move on to the doctrine of holiness, and this we will do, if God permit. 6:4 For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost, 6:5 And have tasted the good word of God, and the powers of the world to come, Hebrews Once again I will break this down as needed.
1) "For it is impossible" Now I know that God told us in Matthew 19:26 that with God, all things are possible ... but when God tells us there is something that is impossible, we had better take notice. As we proceed with the text, we will notice the reason of the impossibility. The Holy Spirit wants us to understand that what is about to be spoken of, is absolute. "For it is impossible".
2) "for those who were once enlightened" These are amazing words! Herein lay words that provide the foundation of the words to follow. When we are lost, God reveals who He is, (Roman's 1:18-21); but when we hear the gospel, we must face the reality of who we are, and what we justly deserve. We are made see that we are the children of wrath, (Ephesians 2:3). We are also made to see that "hell" is a place of torment that is far beyond anything we could ever imagine. We see in Luke 16 some things about "hell", that tell us, this is not the place to spend eternity.
A) 16:24 And he cried and said, Father Abraham, have mercy on me, and send Lazarus, that he may dip the tip of his finger in water, and cool my tongue; for I am tormented in this flame. Luke There is no relief of the torments of the flames. (vs. 24)
B ) The torments are so bad that the former rich man wanted his five brethren to be warned not to come. (vs. 27 and 28) We learn from Jesus that hell is a place which the worms are ever tormenting us. 9:44 Where their worm dieth not, and the fire is not quenched. Mark These exact words are repeated in verses 46 and 48. And so we return to our text ... "for those who were once enlightened" We also learn of God's grace "Christ Jesus". We learn that God loved us so much, that while we we yet sinners, Christ died for us. 5:8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us. Romans In many versions the word "commendeth" is replaced with words such as "showed", "demonstrated", or "proved"; but these words fail to present the meaning of what Christ actually did. The English "commend" carries the meaning of standing beside a person, while speaking on their behalf. In this case (context), it is Jesus who willingly stands before the Father, and introduces us to Him (the Father), using His (Jesus) position as Son, to make us acceptable to the Father! "for those who were once enlightened" Now let us narrow our examination ... Let us focus on the word, "once". If the "enlighten[ment]" of the Holy Spirit was genuine, (and we have no reason to believe it wasn't), it is an enlightenment that only needs to be given once, although it may be revisited, and enhanced many times over. The true enlightenment of the Holy Spirit is what we see when reading the words of the Apostle Paul ... 7:10 For godly sorrow worketh repentance to salvation not to be repented of: but the sorrow of the world worketh death. 2 Corinthians "for those who were once enlightened" Once the Holy Spirit has given you enlightenment, a change will occur.
3) "and have tasted of the heavenly gift" Now many Christian's will look at the word "gift", and assume this is "salvation" ... after all, the Scripture does teach that salvation is a gift. I however do not think this is the focus of the Apostle. What then is this "gift"? Is it not the Person Jesus Christ? Is not Jesus Christ the One who embodies Eternal Life, and the love which delivers us from that which we justly deserve? "and have tasted of the heavenly gift Do we do much do much more than taste the goodness of Jesus Christ while in this mortal body?
4) "and were made partakers of the Holy Ghost" Now we see a direct connection to the Holy Spirit. When we are made "partakers of the Holy Spirit", (it is witnessed by the other principles listed herein), and we then can clearly see the present text is being presented to believers ... (for the reason which I shall soon present).
The Holy Spirit has begun His ministry in the heart of the believer; such ministries include: (As well as many others) A) Regeneration (Titus 3:5); B ) Being sealed in Christ (Ephesians 1:13; 4:30) C) Filling for power to perform our ministry (Acts 13:9 and 52)
5) "And have tasted the good word of God" In my comment above, I stated that some of these principles are evidence that we are partakers of the Holy Spirit. When we are truly born again, we should have a desire to taste, and yes, even eat the "good word of God" daily. If we do not have this desire, it may be an indication that we have not been truly saved. Our "salvation experience" must be in accordance with the Scriptures. So many are led to pray a "sinners prayer" not having any knowledge of repentance, or knowledge of a tual guilt before God. For some, it is nothing more than turning over a 'new leaf' or something of that sort. Sadly, there have been many that were members of a particular church that never preached a true gospel message, that would find themselves in an evangelistic service, walk forward, only to be told that their past church membership just needs to be reestablished, and they'll be just fine. How can we taste the good word of God unless we have a longing to have it? Our churches so often tell us how much God wants us happy, (or rich), and fail to deliver the good words of God. But here, in this text, the Apostle declares that we have indeed tasted of the good words of God, showing us that his intended audience is the true believer.
6) "and the powers of the world to come" This is truly one of the greatest witnesses that this text is to believers. Not only have these believers enjoyed all the before mentioned principles, but they have also tasted "the powers of the world to come"! The powers of the realm that lay beyond our mortal bodies! One of the great themes of Hebrews is, "Entering into His rest". Entering into a life that goes beyond reliance of the abilities of our flesh, and trusting fully in the gracious power of the Holy Spirit. When we realize that our salvation is secure in Christ, and that God has called us into the service of being Ambassadors for Christ, (part of that Holy Spirit enlightenment), we realize what an honor it is to be identified with our Creator, and Saviour God! God freely allows his power to flow through us to acheive His work, thereby glorifying the Father. This is the believer that the Apostle is writing to in this wonderful text!