Creed comes from the Latan Credo meaning "I believe". A Creed, or Rule of Faith, is a confession of faith for public use, or a form of words setting forth with authority certain articles of belief, which are regarded by the framers as necessary for salvation, or at least for the well-being of the Christian Church.
A creed may cover the whole ground of Christian doctrine and practice, or contain only such points as are deemed fundamental and sufficient, or as have been disputed. It may be declarative, or interrogative in form. It may be brief and popular (as the Apostles' and the Nicene Creeds), for general use in catechetical instruction and at baptism; or more elaborate and theological, for ministers and teachers, as a standard of public doctrine (the symbolical books of the Reformation period). In the latter case a confession of faith is always the result of dogmatic controversy, and more or less directly or indirectly polemical against opposing error. Each symbol bears the impress of its age, and the historical situation out of which it arose.
There is a development in the history of symbols. They assume a more definite shape with the progress of biblical and theological knowledge. They are mile-stones and finger-boards in the history of Christian doctrine. They embody the faith of generations, and the most valuable results of religious controversies. They still shape and regulate the theological thinking and public teaching of the churches of Christendom. They keep alive sectarian strifes and antagonisms, but they reveal also the underlying agreement, and foreshadow the possibility of future harmony.
I believe in God the Father Almighty, Maker of heaven and earth.
And in Jesus Christ his only Son our Lord; who was conceived by the Holy Ghost, born of the Virgin Mary, suffered under Pontius Pilate, was crucified, dead, and buried; he descended into hell; the third day he rose again from the dead; he ascended into heaven, and sitteth on the right hand of God the Father Almighty; from thence he shall come to judge the living and the dead.
I believe in the Holy Ghost; the holy catholic Church; the communion of saints; the forgiveness of sins; the resurrection of the body; and the life everlasting. Amen.
We believe in one God the Father Almighty, Maker of heaven and earth, and of all things visible and invisible.
And in one Lord Jesus Christ, the only-begotten Son of God, begotten of the Father before all worlds, God of God, Light of Light, Very God of Very God, begotten, not made, being of one substance with the Father by whom all things were made; who for us men, and for our salvation, came down from heaven, and was incarnate by the Holy Spirit of the Virgin Mary, and was made man, and was crucified also for us under Pontius Pilate. He suffered and was buried, and the third day he rose again according to the Scriptures, and ascended into heaven, and sits on the right hand of the Father. And he shall come again with glory to judge both the living and the dead, whose kingdom shall have no end.
And we believe in the Holy Spirit, the Lord and Giver of Life, who proceeds from the Father and the Son, who with the Father and the Son together is worshipped and glorified, who spoke by the prophets. And we believe one holy universal and apostolic Church. We acknowledge one baptism for the remission of sins. And we look for the resurrection of the dead, and the life of the world to come. Amen.