Luke 9:37-42

37The next day, when they came down from the mountain, Jesus was met by a large crowd. 38Suddenly a man in the crowd cried out, “Teacher, I beg You to look at my son, for he is my only child. 39A spirit keeps seizing him, and he screams abruptly. It throws him into convulsions so that he foams at the mouth. It keeps mauling him and rarely departs from him. 40I begged Your disciples to drive it out, but they were unable.”

41“O unbelieving and perverse generation!” Jesus replied. “How long must I remain with you and put up with you? Bring your son here.”

42Even while the boy was approaching, the demon slammed him to the ground in a convulsion. But Jesus rebuked the unclean spirit, healed the boy, and gave him back to his father.