▁separate ▁from ▁the ▁rest ▁of ▁Christian ity ▁after ▁the ▁Council ▁of ▁Chal ced on . ▁ ▁Follow ers ▁of ▁the ▁Council ▁believe ▁its ▁most ▁important ▁achiev ement ▁was ▁to ▁issue ▁the ▁Chal ced onian ▁Definition , ▁stating ▁that ▁Jesus ▁is ▁" per fect ▁both ▁in ▁de ity ▁and ▁in ▁hum ann ess ; ▁this ▁self same ▁one ▁is ▁also ▁actually ▁God ▁and ▁actually ▁man ." ▁The ▁council ' s ▁jud g ments ▁and ▁definitions ▁regarding ▁the ▁divine ▁marked ▁a ▁significant ▁turning ▁point ▁in ▁the ▁Christ ological ▁deb ates .< ref > {{ cite ▁book | title = The ▁acts ▁of ▁the ▁Council ▁of ▁Chal ced on ▁by ▁Council ▁of ▁Chal ced on | author 1 = Rich ard ▁Price | author 2 = Michael ▁G add is | date = 2 0 0 6 | is bn = 0 - 8 5 3 2 3 - 0 3 9 - 0 ▁| pages = 1 – 5 | url = https :// books . google . com / books ? id = 6 I U a O OT 1 G 3 UC & pg = PA 9 4 | access date = 2 0 1 6 - 1 1 - 0 1 }} </ ref > ▁ ▁Background ▁In ▁ 3 2 5 , ▁the ▁first ▁ec umen ical ▁council ▁( First ▁Council ▁of ▁N ica ea ) ▁determined ▁that ▁Jesus ▁Christ ▁was ▁God , ▁" con subst ant ial " ▁with ▁the ▁Father , ▁and ▁rejected ▁the ▁A rian ▁cont ention ▁that