Those who think salvation can be lost must be able to show that the Holy Spirit can be removed from any who has believed.
This is a Straw Man argument.
No one is saying that the Holy Spirit can be removed.
But the Holy Spirit can and will depart from a vessel that becomes defiled.
The scriptures repeatedly warn believers that they must stay faithful until then end. If there were no peril, there would be no need for a warning.
The scriptures repeatedly state that having eternal life is conditional based on the believer remaining faithful.
I have posted the relevant scriptures repeatedly.
(Apparently they are not in the OSAS Bible.)
(1) JN 15:1 "I am the true vine, and my Father is the gardener. 2
He cuts off every branch in me that bears no fruit,
15:5 "I am the vine; you are the branches. If a man remains in me and I in him, he will bear much fruit; apart from me you can do nothing. 6
IF ANYONE DOES NOT REMAIN IN ME,
HE IS LIKE A BRANCH THAT IS THROWN AWAY AND WITHERS; SUCH BRANCHES ARE PICKED UP,
THROWN INTO THE FIRE AND BURNED.
(2) RO 11:17 If some of the branches have been broken off, and you, though a wild olive shoot, have been grafted in among the others and now share in the nourishing sap from the olive root, 18 do not boast over those branches. If you do, consider this: You do not support the root, but the root supports you. 19 You will say then, "Branches were broken off so that I could be grafted in." 20 Granted. But they were broken off because of unbelief, and you stand by faith. Do not be arrogant, but be afraid. 21 For
IF GOD DID NOT SPARE THE NATURAL BRANCHES, HE WILL NOT SPARE YOU EITHER.
22 CONSIDER THEREFORE THE KINDNESS AND STERNNESS OF GOD: STERNNESS TO THOSE WHO FELL, BUT KINDNESS TO YOU,
PROVIDED THAT YOU CONTINUE IN HIS KINDNESS. OTHERWISE, YOU ALSO WILL BE CUT OFF.
(3) 1CO 9:27 No, I beat my body and make it my slave
so that after I have preached to others,
I myself will not be disqualified for the prize.
(4) 1CO 10:12 So, if you think you are standing firm,
be careful that you don't fall!
(5) COL 1:21 Once you were alienated from God and were enemies in your minds because of your evil behavior. 22 But now HE HAS RECONCILED YOU BY CHRIST'S PHYSICAL BODY THROUGH DEATH TO PRESENT YOU HOLY IN HIS SIGHT, WITHOUT BLEMISH AND FREE FROM ACCUSATION-- 23
IF YOU CONTINUE IN YOUR FAITH, established and firm, not moved from the hope held out in the gospel.
(6) HEB 3:12 See to it, brothers, that none of you has a sinful, unbelieving heart that turns away from the living God. 13 But encourage one another daily, as long as it is called Today, so that none of you may be hardened by sin's deceitfulness. 14
WE HAVE COME TO SHARE IN CHRIST IF WE HOLD FIRMLY TILL THE END THE CONFIDENCE WE HAD AT FIRST.
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7) HEB 6:4 It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, 5 who have tasted the goodness of the word of God and the powers of the coming age, 6
IF THEY FALL AWAY, to be brought back to repentance, because to their loss they are crucifying the Son of God all over again and subjecting him to public disgrace.
(8) PHP 3:7 But whatever was to my profit I now consider loss for the sake of Christ. 8 What is more, I consider everything a loss compared to the surpassing greatness of knowing Christ Jesus my Lord, for whose sake I have lost all things. I consider them rubbish, that I may gain Christ 9 and be found in him, not having a righteousness of my own that comes from the law, but that which is through faith in Christ--the righteousness that comes from God and is by faith. 10 I want to know Christ and the power of his resurrection and the fellowship of sharing in his sufferings, becoming like him in his death, 11 and so, somehow, to attain to the resurrection from the dead.
PHP 3:12
Not that I have already obtained all this, or have already been made perfect, but I press on to take hold of that for which Christ Jesus took hold of me. 13 Brothers, I do not consider myself yet to have taken hold of it. But one thing I do: Forgetting what is behind and straining toward what is ahead, 14 I press on toward the goal to win the prize for which God has called me heavenward in Christ Jesus.
(9) 2PE 1:5 For this very reason,
make every effort to add to your faith goodness; and to goodness, knowledge; 6 and to knowledge, self-control; and to self-control, perseverance; and to perseverance, godliness; 7 and to godliness, brotherly kindness; and to brotherly kindness, love. 8 For if you possess these qualities in increasing measure, they will keep you from being ineffective and unproductive in your knowledge of our Lord Jesus Christ. 9 But if anyone does not have them, he is nearsighted and blind, and has forgotten that he has been cleansed from his past sins. 10 Therefore, my brothers,
be all the more eager to make your calling and election sure. For
IF YOU DO THESE THINGS, YOU WILL NEVER FALL,
(10) 2PE 2: 20
IF THEY HAVE ESCAPED THE CORRUPTION OF THE WORLD BY KNOWING OUR LORD AND SAVIOR JESUS CHRIST
AND ARE AGAIN ENTANGLED IN IT AND OVERCOME, THEY ARE WORSE OFF AT THE END THAN THEY WERE AT THE BEGINNING. 21 It would have been better for them not to have known the way of righteousness, than to have known it and then to
turn their backs on the sacred command that was passed on to them.
(11) EZE 18:24 "
But if a righteous man turns from his righteousness and commits sin and does the same detestable things the wicked man does, will he live? None of the righteous things he has done will be remembered. Because of the unfaithfulness he is guilty of and because of the sins he has committed, he will die.”