John Piper is justified and sanctified

Piper says, 'The sins that you fight when you fight for joy are a forgiven joylessness, when I wage war on my sins that God hates,I know that they are already defeated,covered, forgiven and I can get victory over them.' They are defeated but still we have to mortify them, our flesh is waging war against us. We are declared perfect, yet perfection still awaits us. We are saved, but we are being saved, and one day we shall be saved.

He goes on to say that we should not confuse justification with sanctification, this is the Roman Catholic error, an infused righteousness.

Does Piper hold that we are being sanctified? Yes, but he is arguing that justification is not the same thing. N. T Wright offers reformed people an interesting corrective, when we are justified by Christ it is not a legal fiction. We cannot say I am righteous if the process of being made righteous is not being show to a hurting world. Martin Lloyd Jones said of this in his Sermon on the Mount 'to say you have had an experience that doesn't draw you to delight in the law is nothing more than an experience it is not the New Birth.'
Yet we like the thief on the cross bring nothing to our salvation, it is by the righteousness of Christ that we are declared righteous. Our sanctification is to make us more and more like Jesus, but this will not be completed until the day we stand before God, then we will be just men made perfect. In the mean time shall we continue to sin that grace may abound? May God forbid!


I am looking forward to reading Piper's upcoming book on Wright. when I read Jesus confrontation with the Pharisees in the Gospels concerning their attitude to the law I cannot understand where the new perspective guys are coming from.
Shalom
Stephen