Work Out Your Own Salvation With Fear and Trembling

Phil.2:12-13 Therefore, my beloved, as you have always obeyed, so now, not only as in my presence but much more in my absence, work out your own salvation with fear and trembling, for it is God who works in you, both to will and to work for his good pleasure.
John MacArthur states in his commentary; The Greek verb rendered "work out" means "to continually work to bring something to fulfillment or completion". It cannot refer to salvation by works,
(Eph.2:8-9 For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.),
but it does refer to the believer's responsibility for active pursuit of obedience in the process of sanctification.
We are to be lights in a dark world, living holy, servant lives and teaching God's way through His word and having His Son Jesus as our example. For it is not if we will fail, but when! We are always subject to the adversaries' cunning exertion in our lives. So run, do not walk from all sin, lest you are lured into participation.
1 Peter 5:6-11 Humble yourselves, therefore, under the mighty hand of God so that at the proper time he may exalt you, casting all your anxieties on him, because he cares for you.  Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour. Resist him, firm in your faith, knowing that the same kinds of suffering are being experienced by your brotherhood throughout the world. And after you have suffered a little while, the God of all grace, who has called you to his eternal glory in Christ, will himself restore, confirm, strengthen, and establish you. To him be the dominion forever and ever. Amen.
God has eternal dominion over the whole universe! He will judge and we will held accountable. Lord, help us to be a servant for You. Teach us how to be self-less in a selfish world. Amen