As he wrote about his experience he was ruthlessly honest.  You’ll notice he does extol God, His character, His compassion and His ability to accomplish what He sets out to do.  He presents what God did in Nineveh in a positive way. 

The more I thought about it, I wondered if God gave him a prescription for deliverance from depression: start journaling.  Writing this book could have been God’s prescribed therapy to deliver Jonah from depression, and in addition, help him wrestle with his problem of anger.  The book ends with the words of God, “Should I not be concerned about that great city?”  Possibly as a result of journaling, Jonah came to the same conclusion, but now in humility he didn’t want to exalt or draw attention to himself.  Maybe he finally learned that God’s agenda is what really matters, not his own.  Anyone who learns that will be healthier, both emotionally and spiritually, and their life will be fulfilled and fruitful. 

If what I’ve surmised is accurate it would probably be wise for us to journal, noting what we’re learning from God and applying it to our lives.