There is a doctrine floating around that has been active for over 200 years. It is called Once saved always saved aka OSAS. OSAS is when a believer gets saved, they are saved forever. But is this true?
Do you not know that OSAS rules out repentance? How so? Because If I am OSAS, and my past, present, future sins are forgiven, then there is no need to repent of the sins that I will commit. But this aint true.
The Greek word for repent means to turn from the sins you did, and turn from your present sins.
There is a scripture in John 6 that OSAS'ers love to use to prove that you are saved and always saved. Jesus said in John 6:39 - And this is the will of him who sent me, that I should lose nothing of all that he has given me, but raise it up on the last day.
Notice the phrase," That I should lose nothing". AHH yes, you see. We cant give up salvation!, but low and behold.. this is not what that phrase means in the Greek. The Greek phrase is "Apollumi me". This is a subjunctive phrase. When something is subjunctive, that means it shows uncertainty, and the possibility that it may or may not happen.
In other words.. it is possible for a believer to forfeit their salvation. Another truth is that it is very unlikely that it will happen If you are deeply rooted in Jesus. Jesus, and the apostles tell us to "continue in the faith." If forfeiting salvation was not possible, then I dont think Jesus and the apostles would exhort us to endure to the end, continue in the faith, or fight the good fight, because in the end, we will endure anyways . Let my people think!! Will you think? Get rid of all biases which I know you already have done that.
Another proof of forfeiting salvation is in Hebrews 6, where they tasted, partook of Gods things, but then they fell away, and in this type of falling away(The kind that has your heart completly turned away from God, never to come back), you cannot be bought back to repentance, thus being lost with no hope of salvation.
Someone may say,"If OSAS is not true, then we have a works salvation." Well I believe this would have it backwards. We do not have a works salvation on our entrance into it, but we do work out our own salvation with fear and trembling. We must abide in the faith, we must obey his commands. You know that is true.
All of these are works, and you will admit that they are works. They are our works, and God does not do these for us. This is what we call the santification process, which is on our part, and God gives us the power to do it. What would you do with that power?