Orthodox Church Fathers: Patristic Christian Theology Classics Search Engine
Additional Note.
Passage not easy to identify, p. 390, note 14.
Easy enough, by the LXX. See Isaiah 63:3 kai\ tw=n eqnw=n ou0k e !stin a0nhr met' emou=. The first verse, referring to Edom, leads our author to accentuate this point of Gentile ignorance.