Chapter III, Pages 2,3:
"...Still, the point is that for the Roman church, Novatian emerges as its first Latin systematizer of doctrine; and his treatise which is given the title De Trinitate is his magnum opus. The original title of the work was probably De Regula Veritatis, since that is how it begins, and also since, as we will see, the word Trinitas does not actually appear anywhere in the document. In fact, it is not so much a treatise on the Trinity per se, as it is an expansion of, or a commentary on, the creed; the Rule of Faith. Nevertheless, by the time of Jerome, around the turn of the fifth century, the title De Trinitate had already been attached to it. Some speculate that it may have gotten this title during the Trinitarian controversy of the fourth century. In fact, Jerome’s writings contain the only mention of a treatise by Novatian called De Trinitate. The assumption that our document is this treatise is based on a comparison of the text with Novatian’s letters..." - (Chapter III, “Between Two Thieves” The Christology of Novatian as “Dynamic Subordination,” Influenced by His Historical Context, and His New Testament Interpretation. By James Leonard Papandrea Ph.D. Dissertation, 1998, Northwestern University.)
[FOOTNOTE 3]: Hieronymus (Jerome) Aduersus Rufinum 2.19, De Viribus Illustribus 70. See also DeSimone, The Treatise of Novatian the Roman Presbyter on the Trinity: A Study of the Text and Doctrine, 47- 49.
[FOOTNOTE 4]: For example, A. Casamassa, Novaziano (Rome: Dispense Universitarie, 1949), 163. See also DeSimone, The Treatise of Novatian the Roman Presbyter on the Trinity: A Study of the Text and Doctrine, 49.
[FOOTNOTE 5]: Jerome Aduersus Rufinum 2.19, and De Viribus Illustribus 70, in which Jerome calls Novatian’s De Trinitate an “epitome” of the work of Tertullian. But see J. Quarry, “Novatiani De Trinitate Liber: It’s Probable History,” Hermathena 10 (1899), 36, 41-42. Quarry believes that the document referred to in Aduersus Rufinum may actually have been Tertullian’s Aduersus Praxean, while he ascribes our De Trinitate to Hippolytus. Quarry also concludes that the heresy concerning the Spirit which is supposedly making use of the treatise in question is not pneumatomachianism, but is in fact Montanism, which he argues could be supported by elements in Tertullian. ... see Russell J. DeSimone, “Novatian,” introduction to Novatian the Presbyter, trans. Russell J. DeSimone, The Fathers of the Church, vol. 67, ed. T. P. Halton (Washington, D.C.: The Catholic University of America Press, 1974), 18;
[FOOTNOTE 6]: Hans Weyer, ed., Novatianus, “De Trinitate”: Über den dreifaltigen Gott, Testimonia, vol. 2 (Dusseldorf: Patmos-Verlag, 1962), 12, 14.