Quotes:Theophilus of Antioch
Zirkoff, Boris
Theophilus Antiochenus (2nd cent. a.d.). Bishop of Antioch. Ordained to that See in 168 or 170 a.d. In his zeal for orthodoxy, wrote against Marcion and other Gnostics. Extant are three of his books against Autolycus, in which is contained earliest example of the use of the term Trinity. *S. Theophili Episcopi Antiocheni ad Autolycum libri III, Oxonii. E. Theatro Sheldoniano, 1684, cont. both the Greek and Latin texts. Also Migne, PCC. English transl. in the Ante-Nicean Fathers (q.v.).
Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 6, p. 447