I absolutely agree that it is by the grace and power of God that we are saved and kept and made to stand...but that doesn't negate the reality that it is by humility and and faith that one receives the grace of God - hence: "The just shall live by faith."
It seems that some believe that it is 100% a work of God and that man and his will and willingness have absolutely no place or duty in permitting the grace of God to come in and cooperate (or "work together") with it...
It is in the knowledge that it is only by the grace of God anyone will be made to stand, and that this grace is only accessible in Christ through His blood, that one maintains the "fear and trembling" necessary to truly "work out your own salvation" and "keep yourselves in the love of God" and to be careful to ever be "building yourselves up on your most holy faith, praying in the Holy Spirit"...
It is the sober reality that I must maintain sincerity and humility and "work out [my] own salvation with fear and trembling"; seeing that it is "God who works in [me] both to will and to do for His good pleasure"; that keeps me in the place of humility and brokenness needed to "pray in the Holy Spirit."
I am not seeking to negate the scriptures the speak of the precious grace and power of God to save and keep a person "to the end" that he may be "blameless in the day of our Lord Jesus Christ."
But nor do I dare neglect and ignore all of the faithful warnings and instructions of God to His people either, which are also mercifully given to us and dearly received as from a Loving and Holy Father, and which are also the setting in which the gem of the grace of God is set and held in it's proper place...
We ought to ever hold the Word of Life in trembling hands and not ignore the abundance of scripture that clearly speak of the duty of the chosen vessels of God to "yield", "reckon", "submit", "fear", "tremble", "strive", "work", "be careful", "take heed", "beware", "maintain", "abide" and the like...
Remember, it was Jesus who warned His students to "fear Him who is able to destroy both body and soul in hell"...
And so long as we maintain such a sane, healthy, sober and faithful fear of God - we are surely securely upheld by the arm of the LORD:
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For as the heavens are high above the earth,
So great is His mercy toward **those who fear Him;**
As far as the east is from the west,
So far has He removed our transgressions from **us.**
As a father pities his children,
So the Lord pities **those who fear Him.**
For He knows our frame;
He remembers that we are dust.
As for man, his days are like grass;
As a flower of the field, so he flourishes.
For the wind passes over it, and it is gone,
And its place remembers it no more.
But the mercy of the Lord is from everlasting to everlasting
**On those who fear Him,**
And His righteousness to children’s children,
**To such as keep His covenant,**
**And to those who remember His commandments to do them.**
~ Psalm 103:11-18