I have Bipolar disorder and have often looked through scripture to find answers to my problems. Depression is something which I am old friends with. You have to make friends with it when you are Bipolar as the damn thing takes up residence so often. What does the bible say?
The Bible tells us that God will never allow temptations into our lives that are too much for us to handle (1 Corinthians 10:13). Depression is often viewed as a persistent feeling of sadness. Of course, it is okay to be sad. We live in a world of pain (Genesis 3:14–19; Romans 8:20–22), and Jesus wept over the death of Lazarus (John 11:35). There is no need to always put on a happy face and pretend that things are okay when they are not. Job, Noah, Joseph, David, Moses and others faced sadness. Most mature believers are susceptible to depression (Elijah, 1 Kings 19:1-4; Peter, Matt. 26:69-75),
The Bible is clear that we should be marked by joy in the Lord, even in some of the most difficult circumstances (John 15:11; Acts 5:41; Gal. 5:22; Phil 4:4). Psalms 42 & 43 give us some solid counsel. David wrote, “Record my misery; list my tears on your scroll—are they not in your record?” (Psalm 56:8). David, a “man after [God’s] own heart” (Acts 13:22), did not gloss over his sadness; he expressed it to God. Remember, David’s depression was due to his sin. Both Moses (Numbers 11:15) and Elijah (1 Kings 19:3–5), two heroes of the faith, confessed to God that they preferred to die than live in their current reality. The Bible is not shy about admitting the realities of human emotion. Sadness is part of life, and it is not condemned. God has given us the resources to be overwhelming conquerors in even the most desperate situations, including torture and martyrdom (Rom. 8:35-37). God is sovereign even over the evil and sinful things going on in this world. God also stands by us when we are in the depths of despair. I know from experience that it feels like God is absent when we are low. That our prayers go unheard. Nothing can be further from the truth. God is there for us and is listening to us intently.
Have I not commanded you? Be strong and courageous. Do not be frightened, and do not be dismayed, for the Lord your God is with you wherever you go.”