Three parts of this Gospel story should be memorable for you. The first of the three is that the people judged that a boy who was clearly suffering from epilepsy was possessed by a demon. It is not healthy for us to ignore good medical advice, preferring to think of ourselves surrounded by hostile demons.
A second memorable point in this Gospel is the help we get from the poor boy’s father. Jesus put the father of the boy in a position with which we too might be famliar. Jesus suggested that bringing about a cure for the boy could depend on the father having faith. Not wanting to lie about it, but not feeling he was in possession of complete faith, he blurted out, “I do believe, help my unbelief.”
The third memorable thing about this story is the reason for the inability of the disciples to drive out the devil. Their failure had embarrassed them in from of the crowd. Jesus said they could not succeed in that case because, “This kind can come out only through prayer.”
If you check the Greek text of Mark’s Gospel you will see that Jesus said, “This kind can come out only through prayer and fasting.” That makes this lesson more emphatic: we cannot always succeed with normal procedures. Success in a worthwhile venture will at times require the proverbial blood, sweat, and tears.