The Nicene Creed* is a statement of the orthodox faith of the early Christian Church in opposition to certain heresies, especially Arianism. These heresies disturbed the Church during the 4th century and concerned the doctrine of the Trinity and the person of Christ. Both the Greek, or Eastern, and the Latin, or Western, Church held this Creed in honor, though with one important difference. The Western Church insisted on the inclusion of the phrase “and the Son” (this phrase is known as the Filioque) in the article on the procession of the Holy Spirit, which phrase to this day is repudiated by the Eastern Church. In its present form, this Creed is composed of the creed of the Council of Nicea (A.D. 325) along with the addition of the articles on the Holy Spirit written at the Council of Constantinople (A.D. 381). Thus, the more correct name for this creed is called the *Niceno-Constantinopolitan Creed. 

HT: Christian Creeds and Confessions Pocket Edition, 8.

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 ages;
     God of God, Light of Light, true God of true 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 at the right hand of the Father;
     and He shall come again, with glory, to judge 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 catholic (1) and apostolic (2) Church.
     We acknowledge one baptism for the remission of sins (3);
     and we look for the resurrection of the dead,
     and the life of the world to come. Amen.

(1) "catholic" means one universal church across all times, places, and peoples (Eph. 2:14-18).

(2) "apostolic" means built upon the doctrinal foundation of the Apostles and prophets (Eph. 2:20).

(3) Baptism is the visible sign and seal of this invisible work of God in washing our souls (Acts 22:16; Heidelberg Catechism, Q&A 69-73; see also Does the Nicene-Constantinopolitan Creed Require Baptismal Regeneration?).