Mark 9:21

and wherever it seizes him, it throws him down; and he foams at the mouth, grinds his teeth, and becomes rigid. I asked your disciples to cast it out, and they weren’t able.”

He answered him, “Unbelieving generation, how long shall I be with you? How long shall I bear with you? Bring him to me.”

They brought him to him, and when he saw him, immediately the spirit convulsed him and he fell on the ground, wallowing and foaming at the mouth.

Often it has cast him both into the fire and into the water to destroy him. But if you can do anything, have compassion on us and help us.”

Jesus said to him, “If you can believe, all things are possible to him who believes.”

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