Jesus, expressing frustration with the faithless generation, instructed the man to bring his son to him. As the boy was brought forward, the demon caused him to convulse. Jesus rebuked the unclean spirit, healed the boy, and returned him to his father. So being a child fo God we can rebuke unclean spirits in Jesus Name! Love the sinner, rebuke the sin!
It reads in Luke 9:37-43 Easy The next day Jesus came down from the mountain with the three disciples. A large crowd met him. A man from the crowd shouted to him. ‘Teacher, please, I ask you to help my son. He is my only child. Sometimes a bad spirit takes hold of him and then he screams. The spirit throws his body first one way then another and water comes out of his mouth. The spirit gives him a lot of pain and it does not leave him alone very much. I asked your disciples to send the bad spirit out of him. But they could not do it.’ Jesus said, ‘You people today still do not believe in God. You have turned away from him. I have been with you for a long time and still you do not believe. It is difficult for me to be patient with you.’ Then Jesus said to the man, ‘Bring your son here.’ While the boy was coming, the bad spirit threw him to the ground. It threw the boy first one way and then the other. ‘Stop!’ Jesus said to it. He then made the boy well and he gave him back to his father. Everybody was very surprised at what they saw. They knew that God was very powerful.