When they came back down the mountain to the other disciples, they saw a huge crowd around them, and the religion scholars cross-examining them. As soon as the people in the crowd saw Jesus, admiring excitement stirred them. They ran and greeted him. He asked, "What's going on? What's all the commotion?"
A man out of the crowd answered, "Teacher, I brought my mute son, made speechless by a demon, to you. Whenever it seizes him, it throws him to the ground. He foams at the mouth, grinds his teeth, and goes stiff as a board. I told your disciples, hoping they could deliver him, but they couldn't."
Jesus said, "What a generation! No sense of God! How many times do I have to go over these things? How much longer do I have to put up with this? Bring the boy here." They brought him. When the demon saw Jesus, it threw the boy into a seizure, causing him to writhe on the ground and foam at the mouth.
He asked the boy's father, "How long has this been going on?"
"Ever since he was a little boy. Many times it pitches him into fire or the river to do away with him. If you can do anything, do it. Have a heart and help us!"
Jesus said, "If? There are no 'ifs' among believers. Anything can happen."
No sooner were the words out of his mouth than the father cried, "Then I believe. Help me with my doubts!"
Seeing that the crowd was forming fast, Jesus gave the vile spirit its marching orders: "Dumb and deaf spirit, I command you—Out of him, and stay out!" Screaming, and with much thrashing about, it left. The boy was pale as a corpse, so people started saying, "He's dead." But Jesus, taking his hand, raised him. The boy stood up.
After arriving back home, his disciples cornered Jesus and asked, "Why couldn't we throw the demon out?"
He answered, "There is no way to get rid of this kind of demon except by prayer."
Leaving there, they went through Galilee. He didn't want anyone to know their whereabouts, for he wanted to teach his disciples. He told them, "The Son of Man is about to be betrayed to some people who want nothing to do with God. They will murder him. Three days after his murder, he will rise, alive." They didn't know what he was talking about, but were afraid to ask him about it.