Where does it come from? What is the source? I think mostly the depression I understand comes from my own self-inflicted brain damage through focusing on a negative over a long period of time — playing a negative, contrary mental loop over and over again in my mind, focusing on someone who I feel has wronged me, or living in denial of a wrong I have committed, basically focusing on self. That same old, narcissistic I, me, my perspective. I am not talking about that deep, dark, hopeless suicidal depression hole, which can be more complicated, and possibly linked to a true physical or chemical malfunction. What I am talking about is the depression brought on by unresolved mental conflict. Let's call it what it is "it's sin," either my own sin or someone's sin against me and my sinful response to that sin.
What's the answer? How do I fix this? I think this starts with 1 John 1:9 — "If we confess our sins, He is faithful and righteous to forgive us our sins and to cleanse us from all unrighteousness." Then truly believe, rest in, and be thankful for Romans 8:28 — "And we know that God causes all things to work together for good to those who love God, to those who are called according to His purpose." Lord Jesus, help me in whatever I do, in word or deed, to do all in Your name, giving thanks through You to God the Father.
I love You God. I trust You God. I can do all things through Christ who strengthens me. Thank You God.