The disciples weren’t able to heal a boy possessed by an evil spirit, and their failure led to an embarrassing public spectacle. Jesus healed him through his word of power. This left the disciples wondering what the reason was for their failure and the dramatic healing of the boy possessed by an evil spirit really troubled the disciples. Jesus gave them the power to cast out evil spirits, and they had done it before. So why weren’t they able to do it this time? So, they asked Jesus about it. And the answer that Jesus gave them is a very interesting one. He tells them that this kind of evil spirit can come out only by prayer.…