Ecumenical Christian creed was the Nicene Creed
Nicaea Creed (also called the Nicene-Constantinopolitan Creed) was the first Ecumenical Christian creed. Created in 325 CE at the First Council of Nicaea (now Iznik, Turkey), the Roman Emperor Constantine convened them. Then modified the Nicaea Creed at a second council held in Constantinople (now Istanbul, Turkey) in 381 CE.
This is the only creed accepted as authoritative by the Roman Catholic, Eastern Orthodox, Anglican, and major Protestant churches, the Nicene Creed held that “God the Father and God the Son are consubstantial and coeternal” and that “Arianism “the doctrine in which Jesus is a being created by and subservient to God, was heretical.”
- Constantine the Great – Wikipedia
Constantine was the first Roman emperor to convert to Christianity, and he played an influential role in the proclamation of the Edict of Milan in 313, which declared religious tolerance for Christianity in the Roman empire.
- Nicene Creed | History & Text | Britannica.com
Nicene Creed. Nicene Creed, also called Niceno-Constantinopolitan Creed, a Christian statement of faith that is the only ecumenical creed because it is accepted as authoritative by the Roman Catholic, Eastern Orthodox, Anglican, and major Protestant churches.
- Ecumenical creeds – Wikipedia
Ecumenical creeds is an umbrella term used in the Western Church to refer to the Nicene Creed, the Apostles’ Creed and, less commonly, the Athanasian Creed.
- Nicene Creed – Wikipedia
The Nicene Creed is a statement of belief widely used in Christian liturgy. It is called Nicene because it was originally adopted in the city of Nicaea (present day İznik, Turkey) by the First Council of Nicaea in 325.
- Ecumenical Christian Creeds – Christian Resource Institute
The first creeds of the Christian Church are called ecumenical (or universal) creeds because they were widely used before the Church permanently spilt into Eastern (Orthodox) and Western (Roman) factions in AD 1054. However, this is a term that is primarily used in the Western branches of the Church.
- The Nicene and Apostles’ Creeds | Christian Bible Studies
Many Christians throughout the world recite either the Nicene Creed or the Apostles’ Creed regularly in their church services. Following is a short history and recitation of each creed.