And one of the crowd answered him, "Teacher, I brought my son to you, for he has a dumb spirit;
and wherever it seizes him, it dashes him down; and he foams and grinds his teeth and becomes rigid; and I asked your disciples to cast it out, and they were not able."
And he answered them, "O faithless generation, how long am I to be with you? How long am I to bear with you? Bring him to me."
And they brought the boy to him; and when the spirit saw him, immediately it convulsed the boy, and he fell on the ground and rolled about, foaming at the mouth.
And Jesus asked his father, "How long has he had this?" And he said, "From childhood.
And it has often cast him into the fire and into the water, to destroy him; but if you can do anything, have pity on us and help us."
And Jesus said to him, "If you can! All things are possible to him who believes."