You're eisegeting reprobates into the text. Again "Reprobates don't have a race to run, are and were never in Christ, so there is no failure to abide by His grace and His help."
If they do not look to the author & finisher of our faith but rather to themselves by keeping that commitment, then they have fallen by grace. If they sow to the flesh in reaping corruption, they are disqualified and thus reprobates and shall become castaways as Paul warned that can happen to himself if he did not bring his body under subjection.
If a person goes that route, 1 John 2:19 gives us the answer.
That is in light of the many antichrists that are out there as stated in 1 John 2:18
You're teaching loss of salvation, even though you deny that you do so.
It is understandable why you see it that way.
Titus 1:16
They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.
Matthew 7:21
Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven. 22 Many will say to me in that day, Lord, Lord, have we not prophesied in thy name? and in thy name have cast out devils? and in thy name done many wonderful works? 23 And then will I profess unto them,
I never knew you: depart from me, ye that work iniquity.
So here we see the Lord denying them because any work on that foundation that denies Him, He will deny them, but even in the case of a former believer that denies Him verbally, He still abides even after denying them. How else can you explain the verses below?
2 Timothy 2:1
0 Therefore I endure all things for the elect's sakes, that they may also obtain the salvation which is in Christ Jesus with eternal glory 11 It is a faithful saying: For if we be dead with him, we shall also live with him: 12 If we suffer, we shall also reign with him:
if we deny him, he also will deny us: 13 If we believe not, yet he abideth faithful: he cannot deny himself.
2 Timothy 2:18
Who concerning the truth have erred, saying that the resurrection is past already;
and overthrow the faith of some. 19 Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, let every one that nameth the name of Christ depart from iniquity
. 20 But in a great house there are not only vessels of gold and of silver, but also of wood and of earth; and some to honour, and some to dishonour. 21 If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work.
So there are 2 kinds of vessels in His House; the vessels unto honor as vessels of gold and silver and the vessels unto dishonor the vessels of wood and earth. If a believer departs from iniquity before the Bridegroom comes, he shall be received as vessels unto honor in His House.
If the believer does not depart from iniquity by the time the Bridegroom comes, He will be damned as that vessel unto dishonor, vessels of wood and earth, for not departing from iniquity. If you do not believe that, then explain why departing from iniquity is what makes one a vessel unto honor? Then compare with this verse below.
Matthew 5:19
Whosoever therefore shall break one of these least commandments, and shall teach men so, he shall be called the least in the kingdom of heaven: but whosoever shall do and teach them, the same shall be called great in the kingdom of heaven.
How can anyone break even the least of His commandments and teaches others so be a part of his kingdom of heaven as called the "least"? I'd say that because they did teach that is why they are punished and then called the least as akin to becoming vessels of wood & earth, vessels unto dishonor in His House. Pert Hebrews 12:3-11 & Luke 12:40-49 I believe the scourging and stripes they receive for not being ready is why they will not be doing that again at their resurrection after the great tribulation in serving the King of kings on earth.
You cannot say they were never saved because of how He will judge every believer by what they built on that foundation.
1 Corinthians 3:10 According to the grace of God which is given unto me, as a wise masterbuilder, I have laid the foundation, and another buildeth thereon. But let every man take heed how he buildeth thereupon. 11 For other foundation can no man lay than that is laid, which is Jesus Christ. 12 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble; 13 Every man's work shall be made manifest
: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is. 14 If any man's work abide which he hath built thereupon, he shall receive a reward. 1
5 If any man's work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire. 16 Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you? 17 If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are.
Worst case scenario for a believer that sows to the flesh in reaping corruption thus defiling the temple of God is physical death in verses 16-17 when left behind in that day verse 13 but the spirit is still saved per verse 15.
Akin to the warning given to the church at Thyatira that if they do not repent, they will be cast into the bed of the coming great tribulation.
Revelation 2:18 And unto the angel of the church in Thyatira write; These things saith the Son of God, who hath his eyes like unto a flame of fire, and his feet are like fine brass; 19 I know thy works, and charity, and service, and faith, and thy patience, and thy works; and the last to be more than the first.
Sounds like He is acknowledging them as one of His churches, BUT....
20 Notwithstanding I have a few things against thee, because thou sufferest that woman Jezebel, which calleth herself a prophetess, to teach and to seduce my servants to commit fornication, and to eat things sacrificed unto idols.
21 And I gave her space to repent of her fornication; and she repented not. 22 Behold, I will cast her into a bed, and them that commit adultery with her into great tribulation, except they repent of their deeds. 23 And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.
24 But unto you I say, and unto the rest in Thyatira, as many as have not this doctrine, and which have not known the depths of Satan, as they speak; I will put upon you none other burden. 25 But that which ye have already hold fast till I come.
This is what I believe the pre great tribulation rapture is all about for when God will judge His house first as the Bridegroom. It mirrors what God told the church to do when excommunicating an unrepentant brother that was a fornicator.
1 Corinthians 5:4
In the name of our Lord Jesus Christ, when ye are gathered together, and my spirit, with the power of our Lord Jesus Christ, 5 To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.
Casting believers not ready as found not abiding in Him but in unrepentant iniquity & thus left behind for the beast to wage war on them to the their deaths for the duration of the great tribulation in a literal sense. And continuing in that chapter about how He will hold the feast at the Marriage Supper table in Heaven...
8
Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth. 9 I wrote unto you in an epistle not to company with fornicators: 10 Yet not altogether with the fornicators of this world, or with the covetous, or extortioners, or with idolaters; for then must ye needs go out of the world. 11 But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolator, or a railer, or a drunkard, or an extortioner;
with such an one no not to eat.
So running that race by looking to Jesus Christ for help in abiding in him & His words as His disciples is us moving unto perfection by His grace & by His help.