1. It models Satan."This doesn’t mean you have to go all Joel Osteen on the world. It simply means consistent pessimism is not in line with the sure hope and life-changing power of the gospel."
2. It is contrary to who you are.
3. It is the opposite of prayer.
4. It is simply a waste of time.
5. It swallows up the blessing of mercy before it arrives.
6. It worsens sufferings and afflictions.
7. It wears the hopeless costume of pessimism.
Read the rest for his explanations of each point.