“When we realize a constant enemy of the soul abides within us, what diligence and watchfulness we should have! How woeful is the sloth and negligence then of so many who live blind and asleep to this reality of sin. There is an exceeding efficacy nad power in the indwelling sin of believers, for it constantly inclines itself towards evil. We need to be awake, then, if our hearts would know the ways of God. Our enemy is not only upon us, as it was with Samson, but it is also in us.”

“Sin does not only still abide in us, but is still acting, still laboring to bring forth the deeds of the flesh. When sin lets us alone we may let sin alone; but as sin is never less quiet than when it seems to be the most quiet, and its waters are for the most part deep when they are still, so ought our contrivances against it be vigorous at all times and in all conditions, even where there is least suspicion.”

“The choicest believers, who are assuredly freed from the condemning power of sin, ought yet to make it their business all their days to mortify the indwelling power of sin.”

“Sin also carries on its war by entangling the affections and drawing them into an alliance against the mind. Grace may be enthroned in the mind, but if sin controls the affections, it has seized a fort from which it will continually assault the soul. Hence, as we shall see, mortification is chiefly directed to take place upon the affections.”

“To suppose that whatever God requireth of us that we have power of ourselves to do, is to make the cross and grace of Jesus Christ of none effect.”

“Why is it that it is often easier for us to confess our sins to God than to a brother? God is holy and sinless, He is a just judge of evil and the enemy of all disobedience. But a brother is sinful as we are. He knows from his own experience the dark night of secret sin. Why should we not find it easier to go to a brother than to the holy God? But if we do, we must ask ourselves whether we have not often been deceiving ourselves with our confession of sin to God, whether we have not rather been confessing our sins to ourselves and also granting ourselves absolution...Who can give us the certainty that, in the confession and the forgiveness of our sins, we are not dealing with ourselves but with the living God? God gives us this certainty through our brother. Our brother breaks the circle of self-deception. A man who confesses his sins in the presence of a brother knows that he is no longer alone with himself; he experiences the presence of God in the reality of the other person.”

“Believers obey Christ as the one whom our obedience is accepted by God. Believers know all their duties are weak, imperfect, and unable to abide in God's presence. Therefore they look to Christ as the one who bears the iniquity of their holy things, who adds incense to their prayers, gathers out all the weeds from their duties and makes them acceptable to God.”