Sculpture was an important element of Gothic architecture. Its intent was present the stories of the Bible in vivid and understandable fashion to the great majority of the faithful who could not read. The iconography of the sculptural decoration on the façade was not left to the sculptors. An edict of the Second Council of Nicaea in 787 had declared: "The composition of religious images is not to be left to the inspiration of artists; it is derived from the principles put in place by the Catholic Church and religious tradition. Only the art belongs to the artist; the composition belongs to the Fathers."