Abstract

This article will attempt to show that from the beginning of the letter of Eusebius of Nicodemia to Paulinus of Tyre, the meaning of ὁμοούσιος should be sought in the opposition on the part of the Council of Nicea to the divisive doctrine of hypostases by Arius and his followers. The assertion of the similarity or identity of nature or ousia between the Father and the Son that ὁμοούσιος suggests is traceable to the teaching of Alexander of Alexandria, but also of Eusthatius of Antioch, so that it could be thought that in Nicea a convergence between the two major opponents of Arius could have taken place, in the same way in which it had occurred over the Antiochene formula of 325. Analysis of the doctrine of ὁμοούσιος by Athanasius confirms that the term was opposed to the divisive interpretation of the hypostases within Arianism. The second part of the article, takes into consideration the study on the interpretation of the Nicene ὁμοούσιος proposed by P. F. Beatrice. The Author argues that Beatrice’s thesis, which attempts to trace the introduction of the term in the Nicene Creed back exclusively to Constantine, with the agreement of Eusebius of Caesarea, is not backed by the documentation at our disposal