▁demon ology ▁es cal ated ▁with ▁the ▁rise ▁of ▁Jewish ▁pse ude p ig raph ic ▁writ ings ▁of ▁the ▁ 1 st ▁Century ▁B CE , ▁in ▁particular ▁with ▁En och ic ▁ap oc ry pha . ▁Jewish ▁ap oc ry pha ▁initially ▁influenced ▁post - New ▁Testament ▁writ ings ▁of ▁the ▁early ▁f athers , ▁which ▁further ▁defined ▁Christian ▁demon ology . ▁Thus ▁followed ▁literary ▁works ▁such ▁as ▁The ▁Did ache , ▁The ▁She ph erd ▁of ▁Herm as , ▁Ign ati us ' s ▁ep ist le ▁to ▁the ▁E ph es ians , ▁and ▁Or igen ' s ▁Cont ra ▁C els um . ▁ ▁Main stream ▁Christian ity ▁typically ▁acknow ledge ▁a ▁belief ▁in ▁the ▁reality ▁( or ▁ont ological ▁existence ) ▁of ▁dem ons , ▁fallen ▁ang els , ▁the ▁Dev il ▁in ▁Christian ity ▁and ▁Sat an . ▁In ▁Christian ▁evangel ism , ▁do ctr ines ▁of ▁demon ology ▁are ▁influenced ▁by ▁interpret ations ▁of ▁the ▁New ▁Testament , ▁namely ▁with ▁the ▁G osp els , ▁in ▁that ▁dealing ▁with ▁spirits ▁became ▁a ▁custom ary ▁activity ▁of ▁Jesus ' ▁min istry . ▁Mark ▁states ▁that ▁" he ▁tra ve led ▁throughout ▁Gal ile e , ▁pre aching ▁in ▁their ▁syn agog ues ▁and ▁driving ▁out ▁dem ons " ▁( Mark ▁ 1 : 3 9 ). ▁ ▁Ex or cis ms ▁may ▁be ▁promoted ▁by ▁evangel ists ▁referring ▁to ▁Jesus ▁comment , ▁" If ▁I ▁drive ▁out ▁dem ons ▁by ▁the ▁spirit ▁of ▁God , ▁then