God allows and at times causes us to go through the kinds of circumstances that strip away all falsehood and leave us with our real selves. God's ultimate intent is not to leave us faithless, but to leave us faith-full. There are few things as exhilarating as going through the fire and finding that you had the resilience to make it through. All of us wonder at times whether we have what it takes. God wants to bring us to a place where we have no doubt of the work He has done within us.
Erwin Raphael McManus (2006). “Uprising: A Revolution of the Soul”, p.210, Thomas Nelson Inc