Chapter 1 — The Four Canons
Section 1. Canon I. The Faith of the Three Hundred and Eighteen Fathers assembled at Nicaea in Bithynia shall not be set aside, but shall remain firm. And every heresy shall be anathematized, particularly that of the Eunomians or Anomoeans, the Arians or Eudoxians, the Semi-Arians or Pneumatomachi, the Sabellians, the Marcellians, the Photinians, and the Apollinarians.