Imperfect tense. Rev. does not improve by reading he commanded. The imperfect expresses the simultaneousness of the exorcism and the cry torment me not. Better, for he was commanding. So the Am. Rev.
It had seized (συνηρπάκει)
Used by Luke only. See Act 6:12; Act 27:15. The verb literally means to snatch and carry away with (σύν).
He was kept bound (ἐδεσμεύετο φυλασσόμενος)
Lit., he was bound, being guarded. Rev., was kept under guard and bound. The A. V. does not sufficiently bring out the vigilance with which he was attended.