But what need is there to point out how agreeable to sound reason, and unattended with injury either to master or slave, was the law that one of the same faith should not be allowed to continue in slavery more than six years? The Jews, then, cannot be said to preserve their own law in the same points with the other nations. For it would be censurable in them, and would involve a charge of insensibility to the superiority of their law, if they were to believe that they had been legislated for in the same way as the other nations among the heathen.
And although Celsus will not admit it, the Jews nevertheless are possessed of a wisdom superior not only to that of the multitude, but also of those who have the appearance of philosophers; because those who engage in philosophical pursuits, after the utterance of the most venerable philosophical sentiments, fall away into the worship of idols and demons, whereas the very lowest Jew directs his look to the Supreme God alone; and they do well, indeed, so far as this point is concerned, to pride themselves thereon, and to keep aloof from the society of others as accursed and impious.
And would that they had not sinned, and transgressed the law, and slain the prophets in former times, and in these latter days conspired against Jesus, that we might be in possession of a pattern of a heavenly city which even Plato would have sought to describe; although I doubt whether he could have accomplished as much as was done by Moses and those who followed him, who nourished a “chosen generation,” and “a holy nation,” dedicated to God, with words free from all superstition.
Source: Against Celsus (New Advent)