ἕνος ὄντος εἴδους θεότητος: for the word εἶδος, cf. Orat. iii. 16 is generally applied to the Son, as in what follows, and is synonymous [?] with hypostasis; but it is remarkable that here it is almost synonymous with οὐσία or φύσις. Indeed in one sense nature, substance, and hypostasis, are all synonymous, i.e. as one and all denoting the Una Res, which is Almighty God. The apparent confusion is useful as reminding us of this great truth; vid. note 8, infr.