NET
39 A spirit seizes him, and he suddenly screams; it throws him into convulsions and causes him to foam at the mouth. It hardly ever leaves him alone, torturing him severely.
Darby
39 and behold, a spirit takes him, and suddenly he cries out, and it tears him with foaming, and with difficulty departs from him after crushing him.
KJV
39 And, lo, a spirit taketh him, and he suddenly crieth out; and it teareth him that he foameth again, and bruising him hardly departeth from him.