I can think of at least 25 reasons why we can't loose our salvation. The baisic premise is salvation is all God's doing. He gives us the free Gift, so why would he take it back. Then Christ is our High priest praying for us. Are His prayers ineffective or He cannot intercede on our behalf? But how does the OT see these things? There is no question that in many respects OT salvation was works based .... but was it really ..

Genesis 3 explains how Adam sinned after he ate of the fruit of the tree of knowledge of good and evil.  Then God drove him from the garden of Eden guarding the way back to the tree of life with a cherubim armed with a flaming sword (v. 24).  Now ask yourself this:  Why did God have to surround the entrance to the tree of life with the flaming sword and the cherubim? Why did God now prevent Adam  from eating the fruit of the tree of life?

Genesis 3:22 explains, "And the Lord God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever."  The fruit of the tree of knowledge of good and evil signifies independence from God but the fruit of the tree of life signifies eternal life—the eternal life given to us by the Son of God. After Adam sinned if he then ate of the tree of life he would live eternally in his sin and corrupted body. God had to prevent this from happening.

We are the redeemed. We have eaten not the fruit of the tree of life, (which is a type only) but (spiritually speaking) Life Himself (John6.51-53).  So how can we die (eternally)?  If Adam could not die after having eaten of the fruit of the tree of life, how can we die after having been washed by the blood of the Lord Jesus? We have having eaten of the tree of life itself and we have received eternal life.  So how can we possibly die? Only those who do not know what regeneration is and what eternal life is can say that salvation can be lost.

so, right from the beginning of time it was God's plan that salvation was to be forever. that is what the tree of life represented ... it represents Jesus Christ .. then, now, forever and it was set that way from the beginning and it will be that way for eternity .

Revelation 2:7 - `He who has an ear, let him hear what the Spirit says to the churches. To him who overcomes, I will grant to eat of the tree of life which is in the Paradise of God.'

God's gift to man is eternal life in Christ (Rom. 6:23). Therefore, the eternal life that we have received cannot be lost, because of what a gift is. A gift is a present from God. It is something that God gives us who believe in His Son. If our salvation could be lost, Romans 6:23 would have to say, "The loan of God is eternal life in Christ." A loan can be reclaimed, but something that is given cannot be reclaimed. Once it is given, it is given forever. If eternal life is given to us in Christ, then it can never be reclaimed.

I'll post few more edited scriptural comments .... maybe one faith can explain how if you jump in the lake and win the salvation lottery, how  can it be reclaimed .... I mean winning the lottery is not conditional upon anything than having the winning numbers .... and you obeyed the jump in the water command ... how can the event be undone ... then if it is undone can you do it again or are the odds of having another winning number too great ...

God's salvation is not an accident, it is according to a definite plan. God's salvation  was planned long ago. Romans 8:29 says, "Those whom He foreknew, He also predestinated to be conformed to the image of His Son." Verse 30, a parenthetical word, says, "And those whom He predestinated, these He also called; and those whom He called, these He also justified; and those whom He justified, these He also glorified." The Lord says, "Those whom He justified, these He also glorified" (v. 30). Unless God brings those whom He justified into glory, His work is not complete. If we cannot get into the new heaven and the new earth, and if we cannot enter into eternal glory, God's work is not complete. 

Philippians 1:6 says that God has begun a good work in us. Since God has started it and has given us salvation Himself, He must complete this work until the day of Christ Jesus. God will complete this work until the day of Christ Jesus, that is, until God glorifies us. 

Verse 6 says, "Being confident of this very thing, that He who has begun in you a good work will complete it until the day of Christ Jesus." Either God will not start, or He will have to finish what He has started. If God was not willing to save us, that would be the end of the story. But if God's desire is to save us, there will be no way for us not to be saved and our salvation is eternal.

LOL!  Wow, I get called out.  I'm so honored.

I don't even know where to begin to shoot all of this down.  Too many scriptures to name, and all of them will go ignored... again.

I don't even know where to begin to shoot all of this down.   ... just shoot your mouth off as you usually do  ... by the way, anything that has scripture in it throws you off ....

When we are saved, not only does God regenerate us and give us eternal life; He made us one spirit with the Lord. First Corinthians tells us that we have not only become one spirit with Christ, but we have become members of His Body (12:27). In 1 Corinthians 6:15 we have the same word. It says that our bodies are the members of Christ. When an unbeliever is saved, not only has he received regeneration and eternal life from God, but he at the same time is joined to the Body of Christ

If God saves us one by one in Christ, and if Christ died for us, washed away our sins, gave us eternal life, and caused us to have a life relationship with Him to become His members then our salvation includes being a member of the Body of Christ. If we were to perish this would imply that the Body of Christ would be incomplete, but the Body of Christ is a definite truth in the Bible. It is a concrete & complete.

I only need one scripture, but of course you'd find a way to twist it into meaning something that it doesn't say.  So what's the point?  Here it goes anyway.

1 Timothy 4:1 But the Spirit explicitly says that in later times some will fall away from the faith, paying attention to deceitful spirits and doctrines of demons

According to this scripture, it is POSSIBLE for someone to fall away from the faith.  Done.  That's all anyone should need.  But there are several more scriptures to prove this.

Now, there are scriptures that talk about how no one can snatch you out of the Father's hand and all that, and of course I agree with them.  However, someone will use those verses saying that someone can't fall away.  Well, my take is that IF (the biggest little word in the dictionary) IF we continue to walk in the light THEN we continue to be His, AND nothing can take us away from Him.  That's also in the scriptures.  Ya see, you have to use scripture to expose the meaning in other scriptures. 

I only need one scripture, but of course you'd find a way to twist it into meaning something that it doesn't say.  So what's the point?  Here it goes anyway.  you are correct, you only need one scripture and you haven't found it.

1 Timothy 4:1 But the Spirit explicitly says that in later times some will fall away from the faith, paying attention to deceitful spirits and doctrines of demons   ... where does it say fall away from faith is losing your salvation. You can fall down and get up. Furhtermore why doesn't the verse state: fall away from their faith in Christ. The verse is just like james's statement of faith without works .... it doesn't mention faith in Christ.

Mathew 24.24 clarafies this: ... notice the correlation to the approach of the end times ..

1 Timothy 4:1 But the Spirit explicitly says that in later times some will fall away from the faith, paying attention to deceitful spirits and doctrines of demons

They fell away from the Faith, a profession in a doctrine, but nothing is said about falling away from salvation..

Show a vers that says you can loose eternal Life..or you can loose your faith..for Faith in the believer is kept by the power of God:

1 pet 1:5

Who are kept by the power of God through faith unto salvation ready to be revealed in the last time.

also for one faith, example of individuals who fell away and did not lose their salvation: david who not only served the philistines, but he was also a murder, adulterer and liar. Then there is saul who broke so many rules they canot all be listed, but he even went as far as to build a statue of himself for his own glorification, and Solomon who introduced foreign worship and who (after receiving the gift of wisdom) went and use it to pursue every singl physical pleasure ....

unless of course, one faith is telling us that Saul isn't saved, neither is David or Solomon .... which leads to my next post.

It is abudantly clear that one faith has no concept of salvation. He can only use what he does not know to prove what he has no idea of.

What is salvation? It is not just a matter of God solving our problem of sin by His Son. Salvation results in forgiveness of sins, it also gives us eternal life. Furhtermore God's salvation justifies us, gives us the Son of God by putting Him inside of us via the Holy Spirit. The HS  imparts to us God's very own nature. This is the content of salvation.  Not only do we have forgiveness and justification, and not only are we not condemned and judged, but we have God's nature, Christ, and the Holy Spirit dwelling within us. So the believer via the Holy Spirit receives a new life, a new inclination, and a new aspiration. God's salvation adds something new to us. So once the Lord is within us, He is there to stay. This is what salvation is ... eternal life.

However, one faith with his dead works has dead faith because his faith is in how own dead works. He never, ever discusses Faith in Christ or what salvation or the gift of the HS spirit means ...