Friedrich Nietzsche
On the Genealogy of Morality (Chap. 2.7)
You will have already guessed how easily the priestly way of evaluating can split from the knightly-aristocratic and then continue to develop into its opposite. Such a development receives a special stimulus every time the priestly caste and the warrior caste confront each other jealously and are not willing to agree amongst themselves about the winner. The knightly-aristocratic judgments of value have as their basic assumption a powerful physicality, a blooming, rich, even overflowing health, together with those things required to maintain these qualities—war, adventure, hunting, dancing, war games, and, in general, everything which involves strong, free, happy action. The priestly-noble method of evaluating has, as we saw, other preconditions: these make it difficult enough for them when it comes to war! As is well known, priests are the most evil of enemies—but why? Because they are the most powerless. From their powerlessness, their hate grows among them into something huge and terrifying, to the most spiritual and most poisonous manifestations. The really great haters in world history and the most spiritual haters have always been priests—in comparison with the spirit of priestly revenge all the remaining spirits are generally hardly worth considering. Human history would be a really stupid affair without that spirit which entered it from the powerless. Let us quickly consider the greatest example. Everything on earth which has been done against “the nobility,” “the powerful,” “the masters,” “the possessors of power” is not worth mentioning in comparison with what the Jews have done against them: the Jews, that priestly people, who knew how to get final satisfaction from their enemies and conquerors through a radical transformation of their values, that is, through an act of the most spiritual revenge. This was appropriate only to a priestly people with the most deeply repressed priestly desire for revenge. In opposition to the aristocratic value equations (good = noble = powerful = beautiful = fortunate = loved by god), the Jews, with a consistency inspiring fear, dared to reverse things and to hang on to that with the teeth of the most profound hatred (the hatred of the powerless), that is, to “only those who suffer are good; the poor, the powerless, the low are the only good people; the suffering, those in need, the sick, the ugly are also the only pious people; only they are blessed by God; for them alone there is salvation.—By contrast, you privileged and powerful people, you are for all eternity the evil, the cruel, the lecherous, the insatiable, the godless; you will also be the unblessed, the cursed, and the damned for all eternity!” . . . We know who inherited this Judaic transformation of values . . . In connection with that huge and immeasurably disastrous initiative which the Jews launched with this most fundamental of all declarations of war, I recall the sentence I wrote at another time (in Beyond Good and Evil, section 195)—namely, that with the Jews the slave rebellion in morality begins: that rebellion which has a two-thousand-year-old history behind it and which we nowadays no longer notice because it—has triumphed. . . .*

Beyond Good and Evil: Nietzsche published this work in 1886