11In him we have obtained an inheritance, having been predestined according to the purpose of him who works all things according to the counsel of his will, 12so that we who were the first to hope in Christ might be to the praise of his glory. 13In him you also, when you heard the word of truth, the gospel of your salvation, and believed in him, were sealed with the promised Holy Spirit, 14who is the guarantee of our inheritance until we acquire possession of it, to the praise of his glory.
If God says I'm sealed, then sealed I am.
I'm not going to dare to call God a liar to his face and deny it.
Let me know how that works out for you.
It’s not done. The race ends when you die, so I guess you believe that you can be an insufferable evil human being and get out of jail free because you profess Jesus to be your Lord and savior.
I think not.
And the sea gave up the dead which were in it, and death and Hades gave up the dead which were in them; and they were judged, every one of them according to their deeds. Revelation 20:13
for it is not the hearers of the Law who are just before God, but the doers of the Law will be justified. Romans 2:3
Eternal security is a myth that even many Protestants have a problem with.
You have groups like the Free-Will Baptists who share your view about Sola Scriptura, yet they reject the whole idea of once saved, always saved.
1-Free Will Baptists hold to “Conditional Eternal Security.” Free Will Baptists believe in “saved by faith, kept by faith”. The believer is a child of God and destined for Heaven based upon the condition of continuing in the faith. This does not mean a person sins and thus accidentally loses his salvation. To forfeit salvation, one would have to cease to believe and denounce his free will to follow Christ (based on an interpretation of Hebrews 6:4-6). This is different in that most Baptist churches teach Unconditional Eternal Security of the believer, or “once saved, always saved”.
http://en.allexperts.com/q/Baptists-954/f/Free-Baptist-Doctrine.htm