(3) There was read out from
the same letter: He teaches that the same is the only true one when he
says, ‘so that they may know you, the only true God’, meaning not the one of them
is the only God, but that one of them is the only true God, through the
absolutely essential addition of ‘the true’, since the Son is himself God but
not the true God. For there is but one only true God, through having no one
before him. If, however, the Son himself were ‘true’, as the image of the true
God he would also be God, since ‘the Word was God’, but not as the only true
God. (“Letter of Eusebius of Caesarea to Euphration of Balanea,” in Documents
of the Early ‘Arian’ Controversy and the Council of Nicaea [trans. David M.
Gwynn, Richard Price, Michael Whitby, and Philip Michael Forness; Translated
Texts for Historians 91; Liverpool: Liverpool University Press, 2025], 100-1,
italics in original)
