Wherever it seizes him, it throws him down and he foams at the mouth, grinds his teeth and stiffens out. I spoke to your disciples, asking them to drive it out, but they were not able to."

Then they [i.e., some people from the crowd] brought the sick boy to Jesus, and when the spirit saw Him, it immediately caused the boy to have convulsions and to fall to the ground and roll around, foaming at the mouth.