Mark 9:27

Immediately the father of the child cried out with tears, “I believe. Help my unbelief!”

When Jesus saw that a multitude came running together, he rebuked the unclean spirit, saying to him, “You mute and deaf spirit, I command you, come out of him, and never enter him again!”

After crying out and convulsing him greatly, it came out of him. The boy became like one dead, so much that most of them said, “He is dead.”

When he had come into the house, his disciples asked him privately, “Why couldn’t we cast it out?”

He said to them, “This kind can come out by nothing but by prayer and fasting.”

They went out from there and passed through Galilee. He didn’t want anyone to know it,