We must notice the remarks which Celsus next makes, when he says to us, that “faith, having taken possession of our minds, makes us yield the assent which we give to the doctrine of Jesus;” for of a truth it is faith which does produce such an assent. Observe, however, whether that faith does not of itself exhibit what is worthy of praise, seeing we entrust ourselves to the God who is over all, acknowledging our gratitude to Him who has led us to such a faith, and declaring that He could not have attempted or accomplished such a result without the divine assistance.
And we have confidence also in the intentions of the writers of the Gospels, observing their piety and conscientiousness, manifested in their writings, which contain nothing that is spurious, or deceptive, or false, or cunning; for it is evident to us that souls unacquainted with those artifices which are taught by the cunning sophistry of the Greeks (which is characterized by great plausibility and acuteness), and by the kind of rhetoric in vogue in the courts of justice, would not have been able thus to invent occurrences which are fitted of themselves to conduct to faith, and to a life in keeping with faith.
And I am of opinion that it was on this account that Jesus wished to employ such persons as teachers of His doctrines, viz., that there might be no ground for any suspicion of plausible sophistry, but that it might clearly appear to all who were capable of understanding, that the guileless purpose of the writers being, so to speak, marked with great simplicity, was deemed worthy of being accompanied by a diviner power, which accomplished far more than it seemed possible could be accomplished by a periphrasis of words, and a weaving of sentences, accompanied by all the distinctions of Grecian art.
Source: Against Celsus (New Advent)