Mark 9:17-19

New Catholic Bible

¹⁷ A man in the crowd answered him, “Teacher, I have brought you my son who is possessed by a spirit that makes him unable to speak. ¹⁸ Wherever it seizes him, it flings him to the ground, and he foams at the mouth, grinds his teeth, and becomes rigid. I asked your disciples to drive it out, but they were unable to do so.”

¹⁹ Jesus said to them in reply, “O unbelieving generation, how much longer shall I remain with you? How much longer must I put up with you? Bring the boy to me.”