1 John 2:19
19 They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us.
Hebrews 10
38 Now the just shall live by faith: but if any man draw back, my soul shall have no pleasure in him.
39 But we are not of them who draw back unto perdition; but of them that believe to the saving of the soul.
Philippians 1:6
6 Being confident of this very thing, that he which hath begun a good work in you will perform it until the day of Jesus Christ:
as for the reprobate who turn from their wisdom.... void of a saving faith
Romans 1:26-32
26 For this cause God gave them up unto vile affections: for even their women did change the natural use into that which is against nature:
27 And likewise also the men, leaving the natural use of the woman, burned in their lust one toward another; men with men working that which is unseemly, and receiving in themselves that recompence of their error which was meet.
28 And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;
29 Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers,
30 Backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents,
31 Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:
32 Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.
nothing to do with saved believers losing salvation, everything to do with people who knew the truth
had wisdom of it
did not prefer the truth to justifying their sin
were hardened by their own choices and took pleasure in it <- not one of them did God start working in as His child... not one was born again
^
same principal
God is not decieved and will not lose one of His... just like He promised