I would like to clear it up. As I said on another thread, To me how can you not believe in it?
Because Scripture does not teach it and it has never been the teaching of the Christian Church.
You have to keep being saved over and over again otherwise?
No, that's ridiculous. We have our assurance in Christ, because of God's own word and promises. Thus we can be confident that on account of the Word which we have heard, the Baptism we have received, in the Eucharist which we celebrate that we belong to God, we have been sealed by the Holy Spirit, and there is no power that can separate us from the love of God that is in Christ Jesus.
So once isn't enough for you?
One doesn't get saved over and over again. There is only one salvation.
That would seem to say that being saved is meaningless if you can't count on it to stick around.
Any theories, thoughts, etc?
I think you might not understand the views of those outside of the Reformed framework.
My chief issue with "OSAS" is that, counter-intuitively, it denies assurance of salvation. This is going to sound like a very bold claim, but let me elaborate:
Under OSAS if a person believes, but then later abandons the faith, the advocate of OSAS will argue that this person never believed in the first place. Why is this a problem? Because it destroys the very foundation of our hope, confidence, and trust in Jesus Christ.
The person who says, "I believe!", under OSAS, lives under a precarious rock that seems like it might fall at any given moment and crush them--for how can I know that I truly believe rather than just imagine I believe? Seeing as one can truly believe that they believe, but not actually believe, since if they fall away they never truly believed in the first place, then it is impossible to ever know if one has true faith or some kind of false faith. This is, I think, why so many who subscribe to this in the modern Evangelical world, especially those who also subscribe to Decisionist theology, feel the need to emphasize things like sincerity, and "really meaning it", and placing all the onus of one's salvation on a particular kind of "salvation experience". And why, then also, there is often a seeming compulsion to, when speaking with other Christians, to pester and badger with questions like, "Are you absolutely sure you're born again?" "Are you absolutely sure this or that" Everything falls back upon the person and their own ability to have been sincere enough, and then hope that they never fall away or discover that they didn't "really really believe".
Under a strictly Calvinist system, where the entirety of TULIP is accepted, this isn't quite as problematic; but it still has the significant problem--then--of how can one know if one is truly a member of the elect or simply thinks they are. So while it's not an identical problem, it remains the same fundamental problem at its foundation.
Instead our assurance comes from Christ, on account of God's own word, His own promises. Therefore we can trust God's word that we belong to Him, because we can look outside of ourselves to Christ, to Christ's work, and to the Means of Grace. I belong to Jesus Christ because I am a baptized believer in Jesus Christ. I can look to the preached word of the Gospel, it is Christ's own word by which I have faith, and Christ says here in His Gospel that He suffered and died for me. I can look to my baptism, whereby Christ claims me as His, for I have been sealed with the name of the Father, Son, and the Holy Spirit in that baptism. I can look to the Holy Eucharist, whereby in, with, and under this bread and wine there is very Jesus Christ, His own true flesh and true blood which was broken and shed for me.
And thus I can look outside of myself, to Christ, who saves me. It is in this that I have assurance and confidence, security in the salvation which God has wrought by His own grace.
If I willfully abandon Christ, turn away, walk away, and actively shipwreck my faith, then I am throwing away my salvation. Does that mean I will have to "get saved" again? Of course not, rather Christ teaches us that He is the Good Shepherd who comes searching high and low to find just one lost lamb. Christ teaches that God the Father is a loving Father who runs out to embrace the prodigal child. If we throw away everything, and go live among pigs and eating pig slop, the Lord is always there calling us, beckoning us to return, and He comes running after us. We can therefore repent and be restored. The Lord is not cruel holding any away, but beckons all to Himself.
I don't believe in OSAS, I instead believe in the assurance of the Gospel.
-CryptoLutheran