The Bible says..."work out your own salvation with fear and trembling?"
Your verse does not mean to try to save yourself, as how can you pay for your own sin?
And the payment for your sin, is your Salvation, and that happened 2000 yrs ago, ALREADY.
You can't do that for yourself, so, the verse means something else, Episkopos, tho you would try to teach it as "work to save yourself" as all Legalist always try to use the NT to teach "how to save yourself". = Galatians 1:8
The verse is teaching that if you are born again, you HAVE Salvation, and you are to work it out.
This means that you are to learn how to exist within God's Gift of Salvation.
You are to learn what it means to exist "In Christ", as "the righteousness of God"..
THis is what Paul is describing when he teaches that we are to "renew" our minds, and come to the "unity of the FAITH"