Notice the psalmist addresses himself – “he talks to himself,” and herein he discovers the cure. When we get depressed it is because we have “forgotten God” – hence the psalmist says to himself, “Hope thou in God!” (Ps 42:5) Introspective individuals seem to be highly centered on themselves. The danger for such people is to become “morbid.” The great Henry Martyn was this type of man – he was a highly introspective, an introvert who suffered from an obvious tendency to morbidity. In the natural realm there is the type of person who is always analyzing himself, analyzing everything he does. Some of the greatest saints are introverts the extrovert is generally a more superficial person.
The psalmist David writes, “Why are you cast down, O my soul” (Ps 42:5) – David was sad, troubled, perplexed, disquieted, unhappy and spiritually depressed – a very common condition obviously he felt overwhelmed within himself.