the word 'justification' has itself had a chequered career over the course of many centuries of debate. As the major historian of the doctrine has noted, the word has long since ceased to mean, in ecclesial debates, what it meant for Paul himself - which is confusing, since the debates have gone on referring to Paul as though he was in fact talking about what they want to talk about. It is as though the greengrocer treated you to a long discussion of how onions are grown, and how best to cook with them, when what you had asked was how much he would charge for three of them.
N. T. WrightWhen Jesus wanted to explain to his disciples what his death was all about, he didn't give them a theory, he gave them a meal.
N. T. WrightPart of the problem about authenticity is that virtues aren't the only things that are habit forming: the more someone behaves in a way that is damaging to self or to others, the more "natural" it will both seem and actually be. Spontaneity, left to itself, can begin by excusing bad behavior and end by congratulating vice.
N. T. Wright