Mark 9:21-25

21 “How long has this been happening?” Jesus asked the boy’s father. He replied, “Since he was a little boy. 22 The spirit often throws him into the fire or into water, trying to kill him. Have mercy on us and help us, if you can.” 23 “What do you mean, ‘If I can’?” Jesus asked. “Anything is possible if a person believes.” 24 The father instantly cried out, “I do believe, but help me overcome my unbelief!” 25 When Jesus saw that the crowd of onlookers was growing, he rebuked the evil spirit. “Listen, you spirit that makes this boy unable to hear and speak,” he said. “I command you to come out of this child and never enter him again!”