62 The mistake of Faustus and of Manichæism generally, is in supposing that these objections prove anything against us, as if our reverence for Scripture, and our profession of regard for its authority, bound us to approve of all the evil actions mentioned in it; whereas the greater our homage for the Scripture, the more decided must be our condemnation of what the truth of Scripture itself teaches us to condemn. In Scripture, all fornication and adultery are condemned by the divine law; accordingly, when actions of this kind are narrated, without being expressly condemned, it is intended not that we should praise them, but that we should pass judgment on them ourselves.
Every one execrates the cruelty of Herod in the Gospel, when, in his uneasiness on hearing of the birth of Christ, he commanded the slaughter of so many infants. But this is merely narrated without being condemned. Or if Manichæan absurdity is bold enough to deny the truth of this narrative, since they do not admit the birth of Christ, which was what troubled Herod, let them read the account of the blind fury of the Jews, which is related without any expression of reproach, although the feeling of abhorrence is the same in all.
Source: Reply to Faustus the Manichaean (New Advent)