i still to this day am not sure if god exists or not... i don't consider myself christian.
i do know that I struggled for a long time since my adolescent years (age 12) with depression and suicidal thoughts... but was never diagnosed for 20-some years.. until two years ago when i landed myself in the hospital for the first time.
i don't think God necessarily uses affliction to separate a Christian from others to discipline them. It could be for other reasons.
I will never know if my depression was due to a chemical imbalance or due to stress growing up that caused my body to change thus causing the imbalance.
What I do know is that I grew up in a church and was in it from 1985-2000... it was a Bible believing church but had its cultic abberant ways. I always had such great hate for God. Why did I have to struggle with thoughts of killing myself and being sad all the time...? Yet at the same time I couldn't express myself (at the time I was very quiet and shy)... nor could I carry anything out or even attempt to somehow find a way to end my life.
To this day... if I didn't land myself in the hospital, if I wasn't police-escorted to the hospital, I would probably still be going to the church... but my stay at the hospital on involuntary status... it was enough to isolate me from the church's hold on me and my life and the people's and guilt/shame hold on me and the 'beliefs'... as well as isolate me from the world outside I was so scared off... and put distance between me and the thought/belief that everytime something goes bad or is a struggle, it's because god is punishing and disciplining me for something i did wrong or some bad thing i did or "must've done"
I believe that "God" (if you want to call him/it/the guiding force in life 'God') does find a way to steer us away from others... not just for reasons of 'disciplining'... but for reasons of me or my growing and learning.
People in church and Christians... always discouraged me from seeking help from a psychiatrist and therapist and I always heeded the advice, even though my inner child and my heart told me and urged me otherwise. I can say that I am glad that I found the courage within me to following through with seeing both. 2 years and going strong, with meds -- no, i'm not all doped up as people warned me that I would be --and with therapy sessions... I have not had a 'single' panic episode or depression episode... and never had a single/another suicide thought since entering the hospital. I haven't been back to the hospital since that first and last time.
That 'affliction' is what 'saved' me... and allowed me to be open to love... I never really felt love from God or Christians in my churchgoing days... but did realize love and acceptance for the first time from all the hospital staff.... and true peace and happiness in life.
I do know that many Christians think that God uses affliction to punish and discipline... and many believe 'only' to discipline... but moreso, I believe that he uses affliction for our own good, to grow and learn... to become stronger people... in spirit and in faith... whether it be in a religious way or a non-religious way.
My depression and suicidal thoughts struggle... has made me stronger in spirit, and stronger in faith. I don't really believe in God or really have much of a God component in my life... but it is because of my past affliction that I am out of the cult... loving life, living life to the fullest... and now united with true peace and happiness... things that I never really had experienced before