Nicaea the basis for ecumenism? The Council of Nicaea (325 AD) affirmed the consubstantiality between the Father and the Son (i.e. the Son having the same divine nature as the Father). Vatican Insights Leonardo de Chirico photo: iStock It has given historical recognition to the Trinitarian faith in God the Father, Son, and Holy Spirit, thus becoming a symbol of orthodox Christianity. subscribe now Join today to gain access to the rest of this article and many others. more info login If you are already a subscriber, log in to continue. log in access code If you have an access code, enter it here: Go free trial Get free access for 14 days: Sign up Click here to find out how we take care of your personal data.