Library Eusebius of Caesarea On Ecclesiastical Theology
Book 1, Chapter 3: That the heterodox went astray in various ways concerning the Son
This theology the many were not able to comprehend, and so they devised various paths of error: (1) some granting that the Son is God, but denying the man whom he assumed; (2) others supposing him a mere man, and failing to recognize the God who was in him; (3) others again, for fear of seeming to introduce a second God, defining the Father and the Son to be the same. Turning away from these, the Church of God glories in the evangelical proclamation of the truth: she boasts of having one God who is over all, and she inscribes as her own one only-begotten Son, God from God, Jesus Christ, confessing that the same one became Saviour and Son of Man—being Son of God before he became man, and becoming also this which he was not, through the unspeakable abundance of the Father’s love for mankind.
Greek: Erich Klostermann, Eusebius Werke IV (Leipzig: Hinrichs, 1906), pp. 60–182. Digital Greek via Open Greek and Latin / Interlinea (CC BY-SA 4.0). English: study translation by Claude Opus 5.5 for BWAB Library—not the copyrighted CUA Press (Spoerl/Vinzent 2017) text. Technical terms and contested passages may be revised.