15 Holding principles like these, Jerome was compelled, when he discovered apparent discrepancies in the Sacred Books, to use every endeavor to unravel the difficulty. If he felt that he had not satisfactorily settled the problem, he would return to it again and again, not always, indeed, with the happiest results. Yet he would never accuse the sacred writers of the slightest mistake - "that we leave to impious folk like Celsus, Porphyry, and Julian." Here he is in full agreement with Augustine, who wrote to Jerome that to the Sacred Books alone had he been wont to accord such honor and reverence as firmly to believe that none of their writers had ever fallen into any error; and that consequently, if in the said books he came across anything which seemed to run counter to the truth, he did not think that that was really the case, but either that his copy was defective or that the translator had made a mistake, or again, that he himself had failed to understand. He continues: Nor do I deem that you think otherwise. Indeed, I absolutely decline to think that you would have people read your own books in the same way as they read those of the Prophets and Apostles; the idea that these latter could contain any errors is impious.
Source: Spiritus Paraclitus (Vatican.va)