John Piper, in his blog, discusses the paradox of man's choice/Gods will in Philippians 2:12-13 - we work while God works.
This is a spiritual mystery we're actually capable of practicing in real time. We may not understand our role in salvation and sanctification as designed by God but Paul models it and the Spirit guides it...so we can faithfully trust this paradox and live it.
God powerfully works in us. (1:6)
We fearfully work towards Him. (2:12-13)
Paul divinely models it. (3:10-14)
His sovereign will is fulfilled eternally: past, present and future. (Rom. 8:28-30)
