Faith: I believe in One God,
God the Father: the Father Almighty,
Creation: Maker of Heaven and Earth, and of all things visible and invisible.
God the Son: And in one Lord Jesus Christ, the Son of God, the Only-Begotten, begotten of the Father before all ages; Light of Light; True God of True God; begotten, not made; of one essence with the Father, by Whom all things were made; Who for us men and for our salvation came down from Heaven,
Incarnation: and was incarnate of the Holy Spirit and the Virgin Mary, and became man.
Redemption: And He was crucified for us under Pontius Pilate, and suffered, and was buried. And the third day He arose again, according to the Scriptures, and ascended into Heaven, and sits at the right hand of the Father;
Judgment: and He shall come again with glory to judge the living and the dead; Whose Kingdom shall have no end.
Holy Spirit: And in the Holy Spirit, the Lord, the Giver of Life, Who proceeds from the Father; Who with the Father and the Son together is worshipped and glorified; Who spoke by the prophets.
Church: And in One, Holy, Universal, and Apostolic Church.
Baptism: I acknowledge one baptism for the remission of sins.
Resurrection: I look for the resurrection of the dead, and the life of the world to come.
This faith Creed (Constitution) was put on various stages with the emergence of heresies that forced the Church to defend its faith. It is called the Nicene-Constantinopolitan because part of it was put in the First Ecumenical Council which was held in 325 AD in Nicaea (Asia Minor, today's Turkey). Then it was completed in the Second Ecumenical Council which was held in 381 AD in Constantinople (Turkey).
Since the Apostolic era, the Christian worship included public confession of some basic faith elements, especially during baptism. In the fourth century, The Nicene-Constantinopolitan Creed became a key part of our Eastern Churches’ Divine Liturgy Service.
The faith Creed starts with the word "I believe" and not "we believe" to represent the value of the personal commitment of each member of the Church. So, we should not recite it with marginal recitation, or to entrust it to someone without our actual participation. It is required by each and every believer to adopt the Church’ faith and commit to it personally.