Scripture doesn’t teach OSAS. There are too many warnings about falling away.
God teaches, preaches, said I am here to save you, will you believe me or not or will you continue to do your own things and be saved by your dung? in your own faulty interpretations from religions?
Saul saw, to not do as he was doing. God saved him from religion. Whom Was the chief of sinners under religion.
Now Paul, changed by God in revealing truth to Paul. No flesh other than Son's can ever please Father ever.
As he has now done that once for everyone to be new Hebrews 7:11-12, it is done, John 19:30.
Filled for us all to believe, receive and see and be new in love and mercy to all too. Father leading in Father's Holy Spirit through us. Those born again see in Spirit, Learn to see no more of the physical flesh. Son was once known in the flesh, today no more 2 Cor 5:16.
He is risen where new life in Father's Spirit and Truth is given to see clearly, learning from mistakes, not condemned by God anymore, Romans 8:1, yet by people as yourself do, even as I in past did under religions thrall. No more, since God took over by my being willing to God, not religion(s) anymore. God makes and corrects his kids through trust to God Father in risen Son for them alone. No longer dependent on self to be righteous ever. God reversed the curse of the first Adam to now stand in Col 1:21-23, no matter what troubles happen.
So Paul, who was Saul gave up being under Law, counted that as dung, to win Son. Reported in Phi 3, and there he challenges people like yourself, you think you are righteous, me more so then writes it out to prove it, how he could not receive any truth under any Law. Gave up Law
Wow, woe is me as Isaiah 6:1-7 touches my lips with the tongs of God's Holy Fire that has come today , yesterday and forever through the done work of Son once for us all to be made new by Father only if one is willing between Father and themselves. God does not force or manipulate anyone as people do and continue to in general do, through religions!