The last statement you made: "The point still remains for one to be saved and continue to be saved he must continue to abide in the word, the doctrine, of Christ."
This is your opinion only and your inference only, not explicitly stated in these two verses at all. You must acknowledge that your answer cannot be that simplistic in reasoning!
In language of logic and inference you state:
If U = T + NA and if S = T + NA then S = U. You cannot make this into sound argument because you do not know if S(Saved) can commit (T) transgressions as an (U)unsaved person, and 2, that this Saved person does (NA) not abide in the teachings of Christ, ever or can ever. You want it to be true I do know that of course. So IF S=T + NA this is a if and not a FACT of scripture. You have to show all this in scripture and circular reasoning does not count.
Yes indeed, one major mark of abiding in Christ is the belief in his words and his teachings, and a belief that can ONLY be created in the heart by the SPIRIT, to act upon in life.
So in 2 John 1:9 it speaks of those that transgress and do not believe or walk in the teachings of Christ. I believe it is safe to say transgress means whoever sins or offends YHWH. And yes they of course, do not have YHWH IN their heart! And of course those that are saved have the SPIRIT that provides the spirit of his Son and thus HIS DOCTRINE and commandments and thus they are always abiding in Christ. Being saved means we are then all in one SPIRIT - we start as a new seed or new branch abiding in both Christ the tree, and YHWH, the planter of the tree. We are always abiding in Christ. It is not reversible as returning to sin is also, NOT reversible as an unbeliever. YHWH does not see our sin in Christ and that he is fashioning us in the image of Christ whilst we are on the tree of life.
Further, 'loss' of salvation is would seem is a no-return to Christ and the Father or a non-recovery act/state? I guess this is your take?
Is it then, by your reckoning, that if someone who thought (in mind and heart) was saved, abiding in Christ, and for months sinned exceedingly and did not repent until a year later. All the while the SPIRIT kept convicting this person and then finally genuine repentance received. Is this person then SINNING and NOT abiding for months as an unbeliever and some who is lost, too late to recover and is lost in a non- recoverable act/state? Did they sin as an unbeliever then? This would be a transgressions against YHWH and of Christ's words and doctrine, right? So he is lost or lost his salvation? Can you then measure salvation in terms of a line that must not be crossed? Does 2 John 1:9 really suggest you can lose you salvation and where does it say is the cut line?
You see abiding in Christ, is SPIRIT driven and not by human will or work driven. Abiding in Christ is conveyed as a lifestyle, as also in sinning or not. if not, as you seem to suggest, NOT ONE person can maintain their salvation under your interpretation.. Not one human alive can 'perfectly' abide in Christ by their own steam or works, as I sense this is your meaning.
No, the sound argument and premises are these, that:
U = T + NA and S not = T + NA therefore S not = U and therefore S is still SAVED not unsaved or lost. You cannot use some credentials of an unbeliever as in the verses you listed, and apply it so easily to an imperfect true believer that falls at times and is driven by the will of the SPIRIT that keeps them abiding in Christ.
If we used 2 John 1:9 solely as the basis for salvation we definitely would be still lost.
We are not saved by suddenly deciding not to sin or transgress or suddenly believe in the words of Christ ONE day.
And, WE DO NOT CONTINUE in salvation.
The grace of YHWH along with our genuine confession and repentance of sin and the belief in the gospel including our identification with Christ's baptism SAVES us, ONE day.
And, the SPIRIT continues IN US salvation, in sanctification to glorification.
Bless you,
APAK