Born Again and Once Saved Always Saved (OSAS): Can a Christian Lose Salvation?

Summary

Many churches teach “Once Saved Always Saved” (OSAS), meaning a believer can never lose salvation. But what does the Bible actually say? This Scripture-based study examines Jesus’ parables, Hebrews 6, Romans 11, and other key passages to answer an important question: can someone who is born again later fall away? By comparing common church teaching with the full context of Scripture, this page explores whether spiritual maturity is optional — or required.

This study concludes that the doctrine of “Once Saved Always Saved” is not supported when all relevant passages of Scripture are examined together.

The purpose of this study is not to attack any denomination, but to examine all relevant passages together so that Scripture interprets Scripture.

What Does “Born Again” Mean in the Bible?
What Is “Once Saved Always Saved” (OSAS)?
Can a Christian Lose Salvation According to the Bible?
What Is Spiritual Maturity According to the Bible?
Works of the Law vs Spiritual Growth
Closing Remarks
Frequently Asked Questions

1. What Does “Born Again” Mean in the Bible?

Jesus introduced the concept of being “born again” (born of the Spirit) in John 3:3–8, explaining that new birth is spiritual, not physical — flesh gives birth to flesh, but the Spirit gives birth to spirit.

John 3:3-8

...no one can see the kingdom of God unless they are born again... unless one is born of water and the Spirit, he cannot enter the kingdom of God... Flesh gives birth to flesh, but the Spirit gives birth to spirit... You must be born again… the wind blows where it wishes…

The order of our spiritual transformation / regeneration:

1. Birth of the flesh, first birth.

2. Birth of the spirit, born-again.

3. Spiritual maturity

Many people lack the 3rd item: spiritual maturity. In many traditions, assurance of salvation is emphasized more than ongoing spiritual growth. In Protestant traditions, the doctrine of eternal security teaches that a true believer cannot ultimately fall away. The passages on this page are often used to evaluate whether Scripture teaches unconditional security or conditional security.

The Bible describes people who do not mature — choked by life’s worries, riches, and pleasures — and these warning passages are often understood as a form of falling away:

Luke 8:14

"The seed that fell among thorns stands for those who hear, but as they go on their way they are choked by life’s worries, riches and pleasures, and they do not mature."

==> "they do not mature" <==

Become born again and “go on your way”? Then you’re one of these people in Luke 8:14 above. It is our eternity we're talking about; there will not be a 2nd chance if we miss it here! Herd mentality is not the way to God; the narrow gate is the way to God.

2. What Is “Once Saved Always Saved” (OSAS)?

Once Saved Always Saved (also called Eternal Security or Perseverance of the Saints) teaches that a person who is truly born again can never lose salvation, no matter what happens afterward. Supporters of this doctrine point to several passages that emphasize God’s preserving power and the believer’s security in Christ. In Reformed theology this is called “Perseverance of the Saints,” while in many Baptist circles it is called “Eternal Security.” Those who disagree often refer to their view as “Conditional Security.”

This passage from Jesus is often cited as a high-level statement of eternal security, but it does not address every warning passage:

John 10:27–29

My sheep listen to my voice… I give them eternal life, and they shall never perish; no one will snatch them out of my hand…

The next four passages from Paul echo Jesus' words with the same high-level summary description. But without showing the "how to" details:

Romans 8:38–39

Neither death nor life… nor anything else in all creation, will be able to separate us from the love of God…

Ephesians 1:13–14

Having believed, you were marked in him with a seal… a deposit guaranteeing our inheritance…

Philippians 1:6

He who began a good work in you will carry it on to completion…

Hebrews 10:14

For by one sacrifice he has made perfect forever those who are being made holy.

This verse from John is often misinterpreted by supporters of OSAS to mean that if people fall away from grace, they were never truly born again in the first place:

1 John 2:19

They went out from us, but they did not really belong to us...

Side note: The real meaning of this verse refers to false teachers and those who departed from the true teaching of the early Christian community, not the idea that a genuine believer can never fall away. See Are We True Christians? Bible Study for more detail.

OSAS supporters argue that salvation is entirely God’s work and therefore cannot be undone by human failure. However, other passages appear to warn true born-again believers about falling away. The next sections examine those warnings.

3. Can a Christian Lose Salvation According to the Bible?

Scripture includes many warnings that believers must continue in faith and spiritual growth, or risk falling away. These warning passages are often discussed in debates about apostasy — the possibility that a genuine believer can later fall away from the faith.

Even if you're teaching Sunday school, participating in church activities, or engaging in Christian culture, none of these are spiritual maturity and none are fruit.

This debate is often framed as “eternal security vs conditional security” within Protestant theology. The following passages are among the clearest New Testament warnings that are central to this debate.

3.1 Jesus’ Teaching on Remaining in the Vine (John 15:1–7)

This parable from Jesus explains that a born-again believer is like a new branch on a vine. If it does not mature and bear fruit, it withers and dies (spiritually):

John 15:1-7

“I am the true vine, and my Father is the gardener. He cuts off every branch in me that bears no fruit, while every branch that does bear fruit he prunes so that it will be even more fruitful. You are already clean because of the word I have spoken to you. Remain in me, as I also remain in you. No branch can bear fruit by itself; it must remain in the vine. Neither can you bear fruit unless you remain in me.

“I am the vine; you are the branches. If you remain in me and I in you, you will bear much fruit; apart from me you can do nothing. If you do not remain in me, you are like a branch that is thrown away and withers; such branches are picked up, thrown into the fire and burned. If you remain in me and my words remain in you, ask whatever you wish, and it will be done for you. This is to my Father’s glory, that you bear much fruit, showing yourselves to be my disciples.

Notes: After becoming a branch on the Vine, that is after becoming born-again, if no spiritual maturity over time, you may become "a branch cut off" or "wither and die" (spiritually). To remain saved we have to remain in Jesus, and Him in us. This is accomplished by the daily praying of the Lord's Prayer and maturing in the knowledge of God.

3.2 The Parable of the Fig Tree (Luke 13:6–9)

This parable has a similar message - if the fig tree is not producing fruit, cut it down. Is Jesus teaching us about how to grow fig trees? Or the fig tree is us!

Luke 13:6-9

Then he told this parable: “A man had a fig tree growing in his vineyard, and he went to look for fruit on it but did not find any. So he said to the man who took care of the vineyard, ‘For three years now I’ve been coming to look for fruit on this fig tree and haven’t found any. Cut it down! Why should it use up the soil?’ “‘Sir,’ the man replied, ‘leave it alone for one more year, and I’ll dig around it and fertilize it. If it bears fruit next year, fine! If not, then cut it down.’”

Notes: Although the word “fruit” is used in a few different contexts in the Bible and therefore different meanings implied, in this parable "fruit" means maturity in the knowledge of God, as in seek God by reading the Bible and praying the Lord's Prayer daily. God is patient, and waits a long time before giving up on us. However, He would give up on us eventually if no spiritual maturity. But careful, Jesus warns us in other parables about "how long God waits for us", example in the Parable of the Ten Virgins in Matthew 25:1-13.

3.3 The Parable of the Talents (Matthew 25:14–30)

Another parable from Jesus with a similar message about the need to grow spiritually or else!

Matthew 25:14-30

14 “For it is just like a man about to go on a journey. He called his own servants and entrusted his possessions to them. 15 To one he gave five talents, to another two talents, and to another one talent, depending on each one’s ability. Then he went on a journey. Immediately 16 the man who had received five talents went, put them to work, and earned five more. 17 In the same way the man with two earned two more. 18 But the man who had received one talent went off, dug a hole in the ground, and hid his master’s money.

19 “After a long time the master of those servants came and settled accounts with them. 20 The man who had received five talents approached, presented five more talents, and said, ‘Master, you gave me five talents. See, I’ve earned five more talents.’

21 “His master said to him, ‘Well done, good and faithful servant! You were faithful over a few things; I will put you in charge of many things. Share your master’s joy.’

22 “The man with two talents also approached. He said, ‘Master, you gave me two talents. See, I’ve earned two more talents.’

23 “His master said to him, ‘Well done, good and faithful servant! You were faithful over a few things; I will put you in charge of many things. Share your master’s joy.’

24 “The man who had received one talent also approached and said, ‘Master, I know you. You’re a harsh man, reaping where you haven’t sown and gathering where you haven’t scattered seed. 25 So I was afraid and went off and hid your talent in the ground. See, you have what is yours.’

26 “His master replied to him, ‘You evil, lazy servant! If you knew that I reap where I haven’t sown and gather where I haven’t scattered, 27 then you should have deposited my money with the bankers, and I would have received my money back with interest when I returned.

28 “‘So take the talent from him and give it to the one who has ten talents. 29 For to everyone who has, more will be given, and he will have more than enough. But from the one who does not have, even what he has will be taken away from him. 30 And throw this good-for-nothing servant into the outer darkness, where there will be weeping and gnashing of teeth.’

Notes: "Talent" in this parable is knowledge of God / spiritual maturity. We are called to multiply the "talents" that God gives us - meaning increase our knowledge of God. The servant who refused to act was cast out, illustrating the seriousness of neglect.

Obviously Jesus’s long parable is trying to tell us something very important we need to do here to maintain our "saved" status, so we don’t get “cast out into the darkness and gnashing of teeth”. Definitely not "works of the flesh" nor good deeds, but obedience to grow spiritually. Although He does clarify again here that God is very patient with us and does not quickly give up on us. The fact remains, we have a duty to produce fruit / multiply talents.

3.4 The Warning in Hebrews 6:4–6

Here is a passage from Paul that Protestant churches don't teach. Paul here used the word “impossible” related to those once saved and "fallen away", to be saved again! This passage is central in the debate over whether a true believer can commit apostasy and lose salvation, or whether the individuals described were never truly saved.

Hebrews‬ ‭6‬:‭4‬-‭6

”It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, who have tasted the goodness of the word of God and the powers of the coming age and who have fallen away, to be brought back to repentance. To their loss they are crucifying the Son of God all over again and subjecting him to public disgrace.“

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Related Bible study: High-Level Verses & Elaborating Verses

3.5 Paul on Branches Being Broken Off (Romans 11)

Romans 11:16-17

...if the root is holy, so are the branches... If some of the branches have been broken off...

Notes: Clearly this is Paul's version of Jesus' "vine and branches" verses. So Paul too talks about "branches broken off", similar to branches that wither and die, in Jesus' version!! A further confirmation of the possibility of becoming fallen away. And this one is for those who like to hear it from Paul himself :)

Romans 11:23

And if they do not persist in unbelief, they will be grafted in, for God is able to graft them in again.

Notes: And look at this!! If those people who became fallen away, return later and truly seek God, then God will "graft them back in"!! God gives us a lifetime to truly seek Him and grow spiritually. As long as you're still alive you can fix it. But after death it's too late, even if you try blaming the church for it. Exactly as described in the Parable of the Ten Virgins in Matthew 25:1-13.

4. What Is Spiritual Maturity According to the Bible?

4.1 Spiritual Maturity Passages from Jesus

Learn Jesus' commands and keep them. The top 3 commands from Jesus are:

Matthew 6:33 Seek first the kingdom of God and His righteousness

Read the Bible always, the whole Bible, including the parts that contradict your church’s theology. God is in these Scriptures. This is how we "seek Him" and get to know Him. The more we read and understand, the more He reveals Himself to us. And this new knowledge we gain, is one form of fruit production. The other, and more advanced form is perform miracles in Jesus's name.

Matthew 6:9-13 Jesus said: This then, is how you should pray...

Pray the Lord's Prayer daily, and mean it correctly - the "Bread" is the spiritual Bread of life for the forgiveness of sins. So that we're always "righteous" in the eyes of God. More details here: The Lord's Prayer is Severely Misunderstood.

Matthew 22:37-39 [Jesus:] ‘Love the Lord your God with all your heart, ... and ‘Love your neighbor as you love yourself...'

Love - Wholeheartedly love and worship God. And genuinely love all people of all ethnic groups and financial status and forgive your enemies.

Related Bible Study: What Does "Believe in Jesus" Really Mean?

4.2 Paul's Teaching on Spiritual Maturity.

Hebrews 6:1

Therefore let us move beyond the elementary teachings about Christ and be taken forward to maturity

2 Corinthians 13:11

Finally, brothers and sisters, rejoice. Become mature,...

In today's 1st-world-countries, most people are living in luxury with plenty of resources and spare time available to them to multiply their "talents", and help their spiritual growth. There is no excuse, except laziness. Relying completely on the church for our spiritual needs is not the way to grow spiritually. In most churches today, human-nature have taken over, and they veered off the path of the original Christian church created by the disciples of Jesus when they were truly filled with the Holy Spirit.

Singing hymns in church on Sundays is admirable, but that's the icing on the cake. You've missed the cake altogether and focused on the icing! There are many references in the Bible about the need to mature spiritually in order to remain "saved". Many churches will tell you, you "cannot possibly become fallen away - once saved, always saved". The truth is, Scripture describes the possibility of falling away.

5. Works of the Law vs Spiritual Growth

Are you a "Do Nothing" "Lip-Service" Believer? Jesus directly addressed those who honor God outwardly while their hearts remain distant.:

Matthew 15:8 "These people honor Me with their lips, but their hearts are far from Me."

"Their hearts are far from Me" means, they refuse to learn Jesus' commands and they refuse to keep them - yet make no effort to grow spiritually!

And Isaiah prophesied about you!

Isaiah 30:7 ...to Egypt, whose help is utterly useless. Therefore I call her Rahab the Do-Nothing.

A passive “do-nothing” faith can lead to falling away. You're "honoring God with your lips, but your heart is far from Him". A big difference between "Works" and "Spiritual Requirements":

Works of the law: Also called "works of the flesh", means earthly efforts or still trying to apply the Jewish law - Circumcision, tithe 10%, sacrifices, refrain from certain foods, do a lot of good deeds to offset the bad, etc..

Not works of the law / flesh: Spiritual requirements that Jesus commanded: seek God, read the Bible, pray the Lord's Prayer daily, forgive others, etc.. These are only some of Jesus' commands required for spiritual growth! Jesus' commands are in His parables, and in the Sermon on the Mount.

Related Bible study: By Faith Alone?

6. Closing Remarks

People love the message of "do nothing". "If the church is saying it, and the church knows everything, then we're all set". But the reality is, many protestant churches only preached off of a few high-level verses that said that, and ignored thousands of pages in the bible that elaborated on those verses. While those verses are true at a high-level, crucial details are missing - which are in our daily commitment to God exhibited in us seeking God and His Righteousness. Otherwise, we’re not truthful about our claim of believing, and therefore not producing "fruit"!

Every verse in the Bible that says in one sentence something like "believe in Jesus and you're saved...", is meant as a high-level loaded statement. Thousands of other verses and parables clearly elaborate on how to do that.

Related Bible Study: High-Level Verses & Elaborating Verses.

Accepting this biblical-fact of the need for spiritual maturity by seeking God through studying the whole Bible often, and the praying of the Lord’s Prayer daily, may seem strange at first. This is because many churches strongly emphasize assurance of salvation, without equally emphasizing passages that warn about falling away. And some traditions historically placed more emphasis on church authority than personal Scripture study.

God will not excuse you for not knowing to do the right thing to multiply your "talents". Using the excuse of "...it's the church's fault they taught us wrong..." will not fly with God. Download any audio-enabled app to your device, and listen to the Bible always. It comes in many languages and versions. Then research difficult verses online. God will guide you to answers when you're truly seeking Him. See my page on How to Be A True Christian According to the Bible (Not Church Tradition).

7. Frequently Asked Questions

7.1 Is Once Saved Always Saved biblical?

OSAS (eternal security) teaches that a truly born-again believer will not ultimately be lost. Many Christians believe this because Scripture includes strong assurance passages about God’s saving power and eternal life. Others point to warning passages that speak of falling away or being cut off, and conclude that perseverance is required. The debate comes down to how both sets of passages fit together.

7.2 What does Hebrews 6 mean?

Hebrews 6:4–6 describes people who experienced profound spiritual realities and then “fell away,” using very strong language about restoration. Some interpret this as describing people who were never truly saved; others see it as a warning addressed to genuine believers. Either way, it functions as one of Scripture’s clearest warnings against abandoning the faith.

7.3 Does John 15 teach loss of salvation?

John 15 warns that branches “in Me” that do not bear fruit are cut off and burned, emphasizing the need to remain in Christ. Some interpret the fruitless branches as false believers; others see the warning as applying to genuine disciples who fail to continue. Either way, the passage teaches that remaining in Christ is not optional.

7.4 Can someone be born again and fall away?

The New Testament contains both strong assurances and serious warnings. Passages like Luke 8:14 describe people who respond but do not mature, and Romans 11 describes branches being broken off and later grafted in again. Some conclude those who fall away were never truly born again; others believe Scripture warns that apostasy is possible. The consistent theme is perseverance.

7.5 What is the difference between works and spiritual maturity?

“Works of the law” are attempts to earn righteousness through religious effort, which the New Testament rejects as the basis of salvation. Spiritual maturity is growing in faith, obedience, and knowledge of God as the fruit of a living relationship with Christ. The issue is not earning salvation by works, but continuing in genuine faith that produces growth.

Last updated: March 7, 2026

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Born Again and Once Saved Always Saved (OSAS): Can a Christian Lose Salvation?

Summary

Contents

1. What Does “Born Again” Mean in the Bible?

2. What Is “Once Saved Always Saved” (OSAS)?

3. Can a Christian Lose Salvation According to the Bible?

3.1 Jesus’ Teaching on Remaining in the Vine (John 15:1–7)

3.2 The Parable of the Fig Tree (Luke 13:6–9)

3.3 The Parable of the Talents (Matthew 25:14–30)

3.4 The Warning in Hebrews 6:4–6

3.5 Paul on Branches Being Broken Off (Romans 11)

4. What Is Spiritual Maturity According to the Bible?

4.1 Spiritual Maturity Passages from Jesus

4.2 Paul's Teaching on Spiritual Maturity.

5. Works of the Law vs Spiritual Growth

6. Closing Remarks

7. Frequently Asked Questions

7.1 Is Once Saved Always Saved biblical?

7.2 What does Hebrews 6 mean?

7.3 Does John 15 teach loss of salvation?

7.4 Can someone be born again and fall away?

7.5 What is the difference between works and spiritual maturity?

Related Bible Studies

Born Again and Once Saved Always Saved (OSAS): Can a Christian Lose Salvation?

Summary

Contents

1. What Does “Born Again” Mean in the Bible?

2. What Is “Once Saved Always Saved” (OSAS)?

3. Can a Christian Lose Salvation According to the Bible?

3.1 Jesus’ Teaching on Remaining in the Vine (John 15:1–7)

3.2 The Parable of the Fig Tree (Luke 13:6–9)

3.3 The Parable of the Talents (Matthew 25:14–30)

3.4 The Warning in Hebrews 6:4–6

3.5 Paul on Branches Being Broken Off (Romans 11)

4. What Is Spiritual Maturity According to the Bible?

4.1 Spiritual Maturity Passages from Jesus

4.2 Paul's Teaching on Spiritual Maturity.

5. Works of the Law vs Spiritual Growth

6. Closing Remarks

7. Frequently Asked Questions

7.1 Is Once Saved Always Saved biblical?

7.2 What does Hebrews 6 mean?

7.3 Does John 15 teach loss of salvation?

7.4 Can someone be born again and fall away?

7.5 What is the difference between works and spiritual maturity?

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