Indwelling sin remains in us even though it has been dethroned. And though it has been overthrown and weakened, its nature has not changed. Sin is still hostile to God and cannot submit to His law (Romans 8:7). Thus we have an implacable enemy of righteousness right in our own hearts. What diligence and watchfulness is required of us when this enemy in our souls is ready to oppose every effort to do good!
~ Jerry Bridges