Son from the ἀγέννητον, which was acknowledged on all sides to be the peculiar attribute of the Father, while it had been the philosophical as well as Valentinian appellation of the supreme God. This was the chief resource of the Anomœans, who revived the pure Arian heresy, some years after the death of its first author. Their argument has been expressed in the following form; that “the essence of the Father is ἀγέννητον, that of the Son γεννητόν; but ἀγέννητον and γεννητόν cannot be the