▁J ov ian ▁as ▁the ▁new ▁em peror , ▁and ▁to ▁rescue ▁his ▁army , ▁he ▁was ▁forced ▁to ▁surrender ▁N is ib is ▁to ▁Pers ia ▁( also ▁in ▁ 3 6 3 ) ▁and ▁to ▁permit ▁the ▁exp ulsion ▁of ▁the ▁entire ▁Christian ▁population . ▁ ▁E ph rem , ▁with ▁the ▁others , ▁went ▁first ▁to ▁Am ida ▁( Di yar b ak ı r ), ▁eventually ▁sett ling ▁in ▁Ed essa ▁( mod ern ▁ Ş an l ı ur fa ) ▁in ▁ 3 6 3 . ▁E ph rem , ▁in ▁his ▁late ▁f ift ies , ▁applied ▁himself ▁to ▁min istry ▁in ▁his ▁new ▁church ▁and ▁seems ▁to ▁have ▁continued ▁his ▁work ▁as ▁a ▁teacher , ▁perhaps ▁in ▁the ▁School ▁of ▁Ed essa . ▁Ed essa ▁had ▁always ▁been ▁at ▁the ▁heart ▁of ▁the ▁Sy ri ac - spe aking ▁world , ▁and ▁the ▁city ▁was ▁full ▁of ▁rival ▁philosoph ies ▁and ▁relig ions . ▁E ph rem ▁comments ▁that ▁orth odox ▁Nic ene ▁Christians ▁were ▁simply ▁called ▁" Pal ut ians " ▁in ▁Ed essa , ▁after ▁a ▁former ▁bishop . ▁Ari ans , ▁Mar cion ites , ▁Man iche es , ▁B ard ais an ites ▁and ▁various ▁g nost ic ▁sect s ▁proc laimed ▁themselves ▁as ▁the ▁true ▁church . ▁In ▁this ▁confusion , ▁E ph rem ▁wrote ▁a ▁great ▁number ▁of ▁h ym ns ▁def ending ▁Nic ene ▁orth odox y . ▁A ▁later ▁Sy ri ac ▁writer , ▁Jacob ▁of ▁Ser