Paul has made it clear that we are declared righteous by our faith in Jesus. Jesus paid the price for our sins and has imparted HIS righteousness to us. But that does not mean Satan leaves us alone. We still have the choice to offer our bodies as slaves to sin or as slaves to righteousness. Paul was an apostle (called by Jesus himself) and still struggled with this internal battle. We face the same struggle; it is relentless and can make us miserable (as it did Paul). But there is an answer: JESUS!