The grace that saved us is the source of the change that takes place in our lives as saved people:
The spiritual growth of progressive sanctification concerns something vastly deeper than a greater allegiance to God’s rules. It requires God working to fix what sin has broken, and that brokenness exists in our hearts. Only when awe of God progressively replaces awe of self will we joyfully, willingly, and consistently live as God designed us to live. And for the reclaiming of the motivational system of each of our hearts, we have been given amazing, powerful, zealous, unending, and transformative grace.
Awe, Paul David Tripp, Crossway, 2015, page 129.