Jerry Bridges, Trusting God, 1988, p. 150.
This is not to say that every adversity that occurs in our lives through God’s discipline is related to some specific sin we have committed. The issue God is dealing with in our lives is not so much what we do, but what we are. All of us tend to underestimate the remaining sinfulness in our hearts. We fail to see the extent of pride, fleshly self-confidence, selfish ambitions, stubbornness, self-justification, lack of love, and distrust of God that He does see.
Jerry Bridges, Trusting God, 1988, p. 150.