People need forgiveness, Jesus himself said to the religious leaders of his day, what is easier to say, you are forgiven or get up and walk, so that you know i do have the authority to forgive sins I say to the lame man get up and walk, and he did.
There are a lot of people in this world today who know they are under some form of oppression from the evil one and for many when they have turned to the chruch for help they have been frowned upon or told they need to see a shrink. Counselling will not help get rid of a demon, they love it, bringing up all the past hurts and discussing it, what is needed is for them to be kicked out.
It is my view and experience that when people do see God in action then they can actually believe that Jesus has indeed died and rose to life for them and that if they turn to him they will indeed recieve forgiveness for their sins and inherit eternal life.
The ministry of the early church was to set the captives free and the calling by God to that ministry has not changed at all, the only thing that has changed is the churches unbelief.