lol. I'd love "dueling proof texts."
All you've offered are a few fragments of Scripture WITHOUT ATTRIBUTION.
Of course Christians must work out their salvation with fear and trembling, because they are aware of the power and majesty of the God of their salvation and they are aware of what Christ has saved them from.
"Work out." Follow through. Live.
Not earn. Not merit.
It is no accident that Calvin was a lawyer.
Again, however you get there, your theology ends in a very bad god.