“So sanctification isn’t something we lean back on, as much as it’s something we lean into. Rather than being an action only God can do, all by Himself (the way justification and adoption are), sanctification is an endeavor He undertakes in full cooperation and partnership with us. It requires us to exert what you might call “grace-driven effort”—made possible only by the merciful initiative of God, of course, and yet fully employing our human brains, brawn, and body parts as we go.”