I'm not sure why this all matters. If we are born into this world, we will need the blood of Jesus to cleanse us no matter what. When we sin, considered a sinner when born, ability to sin from birth but not committed an actual sin? Could someone define what the actual arguement is here and why it matters?
You are totally right. No matter what you say your theological position is, no man can enter into heaven without the blood of Christ.
That is a very good question. It matters because to say one is born a sinner and then God will send you to hell for being a sinner is to shuck the responsibility of being a sinner. It puts the blame on someone else and not on self. Those who believe in OS tell us we get it from Adam, like we are to believe Adam recreated his own nature somehow.
Another reason it matters is because, we are dealing with scripture and the interpretation thereof. If one can not properly interpret scripture, we have a problem.
I think the biggest problem with the belief of OS is if one follows it to it's logical conclusion, it disqualifies Christ as Saviour. Without them understanding it they are saying Christ has a sinful nature. Now the Christadelphians will just say even though Christ had a sinful nature he never sinned, but both Calvinist and others besides the Christadelphians consider Christadelphians heretics anyway.
Depending on which one you talk to depends on how this sinful nature is defined. Some define it from the Greek word sarx, which means flesh. The problem with that is, Christ came just as we are, in flesh. He is a descendant of man on one side and God on the other. That would make Him at least half a sinner and because we know a little leaven leaveneth the whole lump, Christ would be a sinner by birth.
If one asks someone else they may be told we get our sinful nature from Adam, because his nature changed at the fall. Nature here is like some sort of inner control in the soul or something. It's defined as like something other than the flesh. Not quit sure, nor do I think they are either.
So it is a mixed bag to what one is told when asked to define this mysterious sinful nature.
It's origins comes from the Gnostic religion. The Gnostic belief is, All matter is evil, so therefore all flesh is made of matter it must be evil as well. Some even went as far as to say Christ could not have come in the flesh, but rather He came in the appearance of flesh. That is heresy. You can read about this in 1John where he makes it clear Christ came in the flesh and anyone that says otherwise is an antichrist.
St. Augustine was a Manichean follower before coming to the Christian faith and the Manichean religion is mixed with gnostic beliefs. Austine and Pelagius had an exchange of letters and when the dust settled Augustine must have been a better debater, because his won out with the Church.
Those of us that do not hold to OS are called Pelagians or semi-Pelagians. That is not to say we hold to everything Pelagius did, but we are unfairly accused of it anyway.
But we don't retaliate by saying, now that you believe in OS you must believe everything Augustine did. He also believed in purgatory, but then again so did the Manichean religion.
You want to know some of the beliefs of the Roman Catholic Church, check out the Manichean religion, it's almost like a check list as to what both believe.