"No one can truly change who does not know and rely on gifts from the hand of the Lord. Since Christ is both Giver and Gift, attempts to change without grace are barren of the very purpose, power, and Person that change is about. Self-manufactured change does not dislodge almighty me from the center of my tiny self-manufactured universe. Still in the futility of my mind and the hardness of my heart, I only act a bit different.
Successful living without grace describes mere self-reformation: get your act together, save your marriage, get off your duff and get a job. Failure in living describes failed self-efforts: when you can’t get a grip, you despair. Christ-less, grace-less attempts at change conclude either with the praise of your own glory or with your shame." -David Powlison