Mark 9:20-22

20And 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.

21And Jesus asked his father, "How long has this been happening to him?" And he said, "From childhood.

22And it has often cast him into fire and into water, to destroy him. But if you can do anything, have compassion on us and help us."