13 I tell you, however, that Elijah has already come and that people treated him just as they pleased, as the Scriptures say about him.”
14 When they joined the rest of the disciples, they saw a large crowd round them and some teachers of the Law arguing with them.
15 When the people saw Jesus, they were greatly surprised, and ran to him and greeted him.
16 Jesus asked his disciples, “What are you arguing with them about?”
17 A man in the crowd answered, “Teacher, I brought my son to you, because he has an evil spirit in him and cannot talk.
18 Whenever the spirit attacks him, it throws him to the ground, and he foams at the mouth, grits his teeth, and becomes stiff all over. I asked your disciples to drive the spirit out, but they could not.”
19 Jesus said to them, “How unbelieving you people are! How long must I stay with you? How long do I have to put up with you? Bring the boy to me!”