Luke 9:40 - Exposition

And I besought thy disciples to cast him out; and they could not. This appears to have been a case of the deadliest kind of epileptic lunacy. Our Lord distinctly assumes here that the disease in this case was occasioned by an unclean spirit who had taken possession of the suffering child. The whole question of demoniacal possession, its extent, its cause, whether or no it still survives in some of the many mysterious phases of madness, is very difficult. It has been discussed elsewhere (see notes on Luke 4:33 and following verses).