Hey Debbi
A lot of the literature I have studied on depression points to two causes; it is either a result of a chemical imbalance in the brain and may be treated with medication (a physical condition), or it is simply a spiritual disease. I have suffered with mild depression for years, and know that words of support and encouragement from friends and family, well-intentioned though they are, will only get you so far. Once you're alone again those doubts and self-defeating thoughts start creeping back. You
have to realise that they are all lies. This is why I think its imperative you understand why you're depressed - you must see your doctor. Your condition may be eased with medication; either way, you have to trust fully in the Word of God. The following will reinforce the truth:-
John 15:15 I am Christ's friend
Rom. 5:1 I have been justified
Rom. 8:35-39 I cannot be separated from the love of God
Phil.3:20 I am a citizen of heaven
John 15:16 I have been chosen and appointed to bear fruit
Eph. 2:6 I am seated with Christ in the heavenly realm
Phil. 4:13 I can do all things through Christ who strengthens me
This is the truth! Choosing to trust His Word, rather than your feelings will free you from your depression and lead you into a closer relationship with Christ. I am praying for you