I think one major issue is everyone wants to make it a Calvin vs Arminian argument when most people are neither. And it defeats any true discussion because if you believe in eternal security/OSAS your automatically seen as a Calvinist. If you believe in NOSAS your deemed an Arminian
Yes. That's the dividing line.
Its like Crossnote said. Calvinists place God as being the first cause and Arminians place people as the first cause.
If God CAUSED our Salvation then it can't be lost unless God, for some unknown reason, decides to take it back. Which is not biblical.
If people CAUSED their own Salvation then it CAN be lost. They caused it so they can further cause the loss of it.
No one has seemed to understand Crossnotes opening post.
Salvation is the dividing line, imo. If you truly understand that Salvation is a Gift that cannot be lost then you lean towards Calvinism. If you believe that what you did (obedience, repentance, baptism, etc...) caused God to save you and you further believe that what you do could cause God to un-save you then you lean towards Arminianism.
Kind of a free-will vs. Gods Will scenario. Whose will win...