In the first place, it is with one accord taught and held, following the decree of the Council of Nicea,  that there is one divine essence which is named God and truly is God.  But there are three persons in the same one essence, equally powerful, equally eternal: God the Father, God the Son, and God the Holy Spirit. All three are one divine essence, eternal, undivided, unending, of immeasurable power, wisdom, and goodness, the creator and preserver of all visible and invisible things.  What is understood by the word “person” is not a part nor a quality in another but that which exists by itself, as the Fathers once used the word concerning this issue.
 Rejected, therefore, are all the heresies that are opposed to this article, such as the Manichaeans, who posited two gods, one good and one evil; the Valentinians,31 the Arians, the Eunomians,33 the Mohammedans, and all others like them; also the Samosatenians, old and new,35  who hold that there is only one person and create a deceitful sophistry about the other two, the Word and the Holy Spirit, by saying that the two need not be two distinct persons since “Word” means an external word or voice and the “Holy Spirit” is a created motion in all creatures.