c. =Athenagoras=, about whose life we have no authentic information, in A.D. 177 addressed his Πρεσβεία (_Intercessio_) περὶ Χριστιανῶν to Marcus Aurelius, in which he clearly and convincingly disproves the hideous calumnies of Atheism, Ædipodean atrocities, Thyestean feasts (§ 22), and extols the excellence of Christianity in life and doctrine. In the treatise Περὶ ἀναστάσεως νέκρων he proves, from the general philosophical rather than distinctively Christian standpoint, the necessity of resurrection from the vocation of man in connection with the wisdom, omnipotence and righteousness of God. d. =Theophilus, Bishop of Antioch= († after A.D. 180), was by birth a pagan. His writing Πρὸς Αὐτόλυκον περὶ τῆς τῶν Χριστιανῶν πίστεως is one of the most excellent apologetical treatises of this period. Autolycus was one of his heathen acquaintances. His commentaries and controversial works have been lost. Zahn, indeed, has sought to prove that an extant Latin Commentary on selected passages from the four Gospels in the allegorical style belonging to the first half of the 3rd century, and bearing the name of Theophilus of Antioch, is a substantially faithful translation of the authentic Greek original of A.D. 170. He has also called attention to the great importance of this commentary, not only for the oldest history of the Canon, Text and Exposition, but also for that of the church life, the development of doctrine and the ecclesiastical constitution, especially of the monasticism already appearing in those early times. But while Zahn reached those wonderful results from a conviction that the verbal coincidences of the Latin Church Fathers of the 3rd to the 5th centuries with the supposed Theophilus commentary were examples of their borrowing from it, Harnack has convincingly proved that this so-called commentary is rather to be regarded as a compilation from these same Latin Church Fathers made at the earliest during the second half of the 5th century. e. Finally, an otherwise unknown author =Hermias= wrote under the title Διασυρμὸς τῶν ἔξω φιλοσόφων (_Irrisio gentilium philos._) a short abusive treatise, in a witty but superficial style, of which the fundamental principle is to be found in 1 Cor. iii. 19. § 31. THE THEOLOGICAL LITERATURE OF THE OLD CATHOLIC AGE, A.D. 170-323.