Sin, in being contrary to God, is contrary to man, for what crosses God’s glory is opposed to man’s happiness.

Be as willing to die to sin as Christ was to die for sin, and as willing to live to Him as He was to die for you. Be as willing to be His, to serve Him, as that He should be yours to save you. Take Him on His own terms, give up yourself wholly to Him.

To be merciful to [indwelling] sin is to be cruel to yourself.

Sin is the quintessence of evil; it has made all the evils that there are & is itself worse than all evils it has made. It is so evil that it is impossible to make it good or lovely by all the arts that can be used.