Thank you for your respectful post and scriptures to support your view. The thing about osas is, there is scripture in the bible to support it, and scripture that opposes it. The bible does not contradict itself, we would agree there I am sure. So what do we make of scripture concerning this subject, for normally I would never debate it, as it does not really get anywhere.
We say that God accepts us through faith in his son and not by works. We are saved, even when we are dead in transgressions(Eph2:5)
Can I put something to you? What if a person responded to an altar call at church one night, and accepted Christ as their saviour. But they were making a shallow commitment. Would that person then be placed in a saved state? In my view they would. But God, who is all knowing knows the commitment is not a full blooded one so to speak, the cost has not been counted to use Jesus words. Such a person may well walk away from the faith. Hence, scriptures I could(I won't now) quote would support the non osas belief regarding such people.
Others make a full commitment, only God sees the heart. For them, are all of the verses you quoted. You may not agree with me, but if we only cherry pick the verses we like in the bible, we limit the knowledge available to us, and we get a slanted message. I am not saying you do that at all I assure you, it is just what happens when we do cherry pick. And in my view, the best thing to do, is to seek a belief where you do not end up having your own set of scriptures that has to ignore others
God bless