We allow our daily concerns to turn into anxiety and therefore sin when our thoughts become focused on changing the future instead of doing our best to handle our present circumstances. Such thoughts are unproductive. They end up controlling us—though it should be the other way around—and cause us to neglect other responsibilities and relationships. That brings on legitimate feelings of guilt. If we don’t deal with those feelings in a productive manner by getting back on track with our duties in life, we’ll lose hope instead of finding answers. Anxiety, left unresolved, can debilitate one’s mind and body—and even lead to panic attacks.
(MacArthur, J., Jr. (1993). Anxiety attacked. Wheaton, IL: Victor Books.)