Mark 9:27

When Jesus saw that a multitude came running together, he rebuked the unclean spirit, saying to him,...

Having screamed, and convulsed greatly, it came out of him. The boy became like one dead; so much th...

And when he had come into the house, his disciples asked him privately, "Why could not we cast it ou...

And he said to them, "This kind can come out by nothing, except by prayer [and fasting]. "