Luke 9:37-40

On the next day, when they came down from the mountain, a large crowd met Him. [Matt 17:14-18; Mark 9:14-27] And a man from the crowd shouted for help, “Teacher, I beg You to look at my son, because he is my only child; and a spirit seizes him, and suddenly he cries out, and it throws him into a convulsion so that he foams at the mouth; and only with [great] difficulty does it leave him, mauling and bruising him as it leaves. I begged Your disciples to cast it out, but they could not.”