One can go down two paths with a non-OSAS belief. One is fine, the other is not.
OSAS = Once saved always saved.
I am an OSAS believer. The church I attend teaches non-OSAS. But they preach it in a way that does not incriminate God. After much debate and discussion with church elders, studying of scripture and meditating on the topic. The following are my thoughts. For discussion purposes I am going to try to keep it as simple and as clear as possible.
The right path - You do not attempt to 'play God'.
If someone asks you if person A or B are saved and going to heaven, you say ''I don't know''. Or you say, ''by looking at their works, I doubt it, but let's not fool ourselves, only God can judge their heart Jer 17:9-10. As for me, I work out my salvation in fear and trembling every day Phil 2:12. Knowing that even I can think I am saved and not be saved 1 Cor 10:12''.
The wrong path - You do attempt to 'play God'.
If someone asks you if person A or B are saved and going to heaven, you say ''No!, they are sinning, they have shipwrecked their salvation''. As if you ever knew whether or not they ever had salvation.
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It is as simple as that. A non-OSAS belief, when pushed by people trying to play God can so easily stumble and misrepresent God to the lost.
Taking the wrong path leads to the following heresies:
1. Jer 17:9-10 is a lie, God cannot judge the heart.
2. Num 23:19 is a lie, God is like a human who can make the mistake of grafting a Judas into heaven.
3. Deut 31:8 is a lie, God will leave and forsake you if you leave him and fall into sin.
4. Job 34:12 and 1 Cor 10:13 is a lie, God is unjust on many as He purposely sends many Christians He does not like to spaces with greater temptation of sin, in order that they may fall.
5. Rom 10:9 and John 3:16 is a lie. Just because you can call Jesus Lord and believe in your heart that He was raised from the dead does not mean you are saved.
6. You save yourself by living in a box and avoiding all temptations.
7. You must try fly on airlines that don't properly build or maintain their airplanes as the sooner you die the better your odds of making it to heaven.
There are many more I could list. But I will pause there for now and end with a warning to those that stumble the weak in Christ.
Matt 18:6 "But if anyone causes one of these little ones those who believe in me to stumble, it would be better for them to have a large millstone hung around their neck and to be drowned in the depths of the sea."
I appreciate the effort to lay out the emotional and theological tension that exists between OSAS (Once Saved Always Saved) and non-OSAS perspectives. I’ve wrestled deeply with these questions myself. I understand the appeal of OSAS—it offers comfort, security, and a sense of stability in a chaotic world. But as I’ve searched the Scriptures, prayed, and looked beyond the assumptions I grew up with, I’ve come to believe that the deeper issue isn’t OSAS versus non-OSAS—it’s whether we are allowing
all of Scripture to speak, or only the parts that soothe our fears.
Here’s where I land: I
do believe that salvation is secure—but only
in Christ. I don’t believe salvation is something we can
earn, nor do I believe we’re hopping in and out of it with every stumble or failure. But Scripture is clear: salvation can be
rejected,
neglected, and even
departed from—not because God failed, but because we chose to walk away. The Bible repeatedly warns believers, not unbelievers, with sobering language: “If any man draw back, my soul shall have no pleasure in him” (Hebrews 10:38), “Take heed lest there be in any of you an evil heart of unbelief, in departing from the living God” (Hebrews 3:12), and “You are fallen from grace” (Galatians 5:4).
That’s not about “playing God” or condemning others—it’s about acknowledging that grace is a relationship, not a contract. God’s grace is powerful, sustaining, and patient—but it’s never
coercive. He won’t drag someone kicking and screaming into heaven against their will. He gives us the Spirit to keep us, but He doesn’t override our free will. If I harden my heart over time, continually ignore the voice of the Spirit, and no longer care about repentance, I am not “secure”—I’m self-deceived.
Now, I completely agree with your warning about the wrong way to approach this. It is dangerous—spiritually arrogant, even—to presume we know with certainty who is saved and who is not. That’s not our place. I must always approach others with humility, realizing I don’t know what God is doing in their hearts. But humility goes both ways—I also can’t presume someone
is saved just because they once prayed a prayer or had an emotional experience. Jesus warned of those who would say “Lord, Lord,” and yet He would say to them, “I never knew you” (Matthew 7:21–23). That’s not about God being inconsistent—it’s about people having a form of godliness without ever truly surrendering their lives to Him.
You brought up Jeremiah 17:9–10, and I fully agree—
God alone knows the heart. That’s why we must
not build doctrine around human logic or emotion. We must let
the Word judge us, not the other way around. That means we also can’t dismiss the clear biblical witness that shows believers can be “cut off” (Romans 11:22), can “make shipwreck” of their faith (1 Timothy 1:19), or can “draw back to perdition” (Hebrews 10:39).
I don’t think people lose their salvation casually or instantly. But I also don’t believe in a salvation that’s
irreversible regardless of fruit. John 15 tells us that branches
in Christ that do not bear fruit are cut off. That’s not a threat—it’s a
sobering reminder to abide in Him daily.
So no, I don’t believe God makes mistakes. He doesn’t accidentally “graft Judas into heaven.” Judas had a choice. Demas had a choice. Ananias and Sapphira had a choice. And so do we. God is not mocked. His grace is not cheap. And while He is
able to keep us from falling (Jude 1:24), that promise is to the humble, submitted believer—not the one who uses grace as a license to live disconnected from His voice.
In the end, I don’t think the problem is
non-OSAS. The problem is arrogance—on
either side of the debate. If OSAS causes someone to become careless and passive, it’s just as dangerous as if non-OSAS causes someone to become judgmental and fearful. The key is abiding in Christ, walking in the Spirit, and enduring in faith with humility.
And I agree with your closing point from Matthew 18:6—it’s a terrifying thing to cause someone to stumble. But stumbling comes in many forms: telling someone they can never be lost
when they clearly have no fruit of repentance, or telling someone they are lost forever because they messed up last week. Both are false, and both can cause spiritual harm.
So I’ll continue to work out my salvation with fear and trembling, knowing that He is faithful—but also that I must remain in Him. And I’ll never presume to know another person’s end. Only God sees the heart. Only God knows the whole story. But He has told me enough in His Word to keep me humble, watchful, and utterly dependent on Him every day.