Mark 9:18

9:18 Whenever 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, but they were not able to do so.”

Mark 9:26

9:26 It shrieked, threw him into terrible convulsions, and came out. The boy looked so much like a corpse that many said, “He is dead!”