Origen

“ And as the demons perceive that those who meet death victoriously for the sake of religion destroy their authority, while those who give way under their sufferings, and deny the faith, come under their power, I imagine that at times they feel a deep interest in Christians when on their trial, and keenly strive to gain them over to their side, feeling as they do that their confession is torture to them, and their denial is a relief and encouragement to them. ”

“ But when the souls of those who die for the Christian faith depart from the body with great glory, they destroy the power of the demons, and frustrate their designs against men. Wherefore I imagine, that as the demons have learnt from experience that they are defeated and overpowered by the martyrs for the truth, they are afraid to have recourse again to violence. ”

“ And this may serve as an answer to the remark of Celsus: “But they severely punish one who reviles them, so that he must either flee and hide himself, or be taken and perish.” If a Christian ever flees away, it is not from fear, but in obedience to the command of his Master, that so he may preserve himself, and employ his strength for the benefit of others. ”