In spite of a couple of glitches, Episcopal priest John H. Westerhoff offers a brief but insightful take on the meaning and role of the Nicene Creed in the liturgy.
The response to this conversation on the Word of God [in the sermon] is the Nicene Creed. No matter how much the sermon may have divided us, we are reunited as we pray this creed together. This creed begins: "We believe in," not "I believe." To believe in is to give our love and loyalty to the triune God revealed through the creed. The Christian faith is a way of life, more than the intellectual acceptance of particular doctrines or propositional truths. While this creed is the consequence of two ecumenical councils that met to address to potential heresies and to establish orthodox interpretations of scripture, it was understood to be "a symbol of the faith," reflecting our image of the nature and character of God, the God we will meet in the Holy Eucharist. To emphasize this intuitive approach to the creed, it was often sung. What better response to the hearing of God's Word is there than singing a love song to God in thanksgiving for God's mighty acts on behalf of our and the world's salvation?
John H. Westerhoff, Living Faithfully as a Prayer Book People (Morehouse, 2004), p. 84.