15. When the whole crowd saw him, they were amazed and ran at once and greeted him.
16. He asked them, “What are you arguing about with them?”
17. A member of the crowd said to him, “Teacher, I brought you my son, who is possessed by a spirit that makes him mute.
18. Whenever it seizes him, it throws him down, and he foams at the mouth, grinds his teeth, and becomes rigid. I asked your disciples to cast it out, but they were not able to do so.”
19. He answered them, “You unbelieving generation! How much longer must I be with you? How much longer must I endure you? Bring him to me.”
20. So they brought the boy to him. When the spirit saw him, it immediately threw the boy into a convulsion. He fell on the ground and rolled around, foaming at the mouth.