Origin of Christianity
Jewish, and subsequently—to a greater degree—Christian, priests survived and attained power by siding with decadents, Nietzsche claims. They turned against the natural world. Their "instincts of ressentiment" against those who were well–constituted led them to "invent an other world in which the acceptance of life appeared as the most evil and abominable thing imaginable".
To survive, the Jewish priests made use of the decadents and their large population. The Jews were not decadents, themselves—they are the "very opposite". Rather, according to Nietzsche, they have "the most powerful national will to live, that has ever appeared on earth". However, "they have simply been forced into appearing" as decadents, to "put themselves at the head of all décadent movements (—for example, the Christianity of Paul—), and so make of them something stronger than any party frankly saying Yes to life".
Israel's Yahweh/Jahveh "was an expression of its consciousness of power, its joy in itself, its hopes for itself". Because he is their God, they considered him to be the God of justice. The Jews affirmed themselves, realized their own power, and had a good conscience. Even after internal anarchy and Assyrian invasions weakened Israel, it retained its worship of God as a king who is both soldier and judge.
Concept of God is falsified: Yahweh became a demanding god. "Jahveh, the god of "justice"—he is in accord with Israel no more, he no longer vizualizes the national egoism".
Concept of morality is falsified: morality is no longer an expression of life and growth. Rather, it opposes life by presenting wellbeing as a dangerous temptation. The public notion of this God becomes weaponized by clerical agitators, who "interpret all happiness as a reward and all unhappiness as a punishment for obedience or disobedience to him, for 'sin'".
History of Israel is falsified: The great epoch becomes an epoch of decay. "the Exile, with its long series of misfortunes, was transformed into a punishment for that great age—during which priests had not yet come into existence". The past is translated into religious terms; it was a record of guilt, punishment, piety, and reward in relation to Yahweh. A moral world order is established which assigns value to actions that obey the will of God (and which claims that this general will, i.e. the right way of life for everyone, is eternal and unchanging). Priests teach that "the ruling power of the will of God, expressed as punishment and reward according to the degree of obedience, is demonstrated in the destiny of a nation, of an individual".
God's will is revealed in the holy scripture: the sacred book formulates the will of God and specifies what is to be given to the priests (Nietzsche is referring here to the Pentateuch, which he believes were created by the priestly class during the Babylonian exile and falsely described as a revelation which had been given to Moses). The priest sanctifies and bestows all value: disobedience of God (the priest) is "sin"; subjection to God (the priest) is redemption. Priests use "sin" to gain and hold power:From this time forward things were so arranged that the priest became indispensable everywhere; at all the great natural events of life, at birth, at marriage, in sickness, at death, not to say at the sacrifice' (that is, at meal-times), the holy parasite put in his appearance, and proceeded to denaturize it.
The Jewish church opposed and negated nature, reality, and the world as being sinful and unholy. Christianity then negated the Jewish church and its holy, chosen people, according to Nietzsche:The phenomenon is of the first order of importance: the small insurrectionary movement which took the name of Jesus of Nazareth is simply the Jewish instinct redivivus—in other words, it is the priestly instinct come to such a pass that it can no longer endure the priest as a fact; it is the discovery of a state of existence even more fantastic than any before it, of a vision of life even more unreal than that necessary to an ecclesiastical organization.The Jewish church and the Jewish nation received this rebellion as a threat to its existence:The insurrection said to have been led (whether rightly or wrongly) by Jesus... this saintly anarchist, who aroused the people of the abyss, the outcasts and "sinners," the Chandala of Judaism, to rise in revolt against the established order of things... this man was certainly a political criminal.... This is what brought him to the cross.... He died for his own sins...
Nietzsche criticizes Ernest Renan's attribution of the concepts genius and hero to Jesus. Nietzsche thinks that the word idiot best describes Jesus.
Nietzsche asserts that the psychological reality of redemption was a "new way of life, not a new faith". It is "[t]he deep instinct which prompts the Christian how to live so that he will feel that he is 'in heaven'". The authentic follower of Jesus should known by his acts. He offers no resistance to evil, He has no anger and wants no revenge. Blessedness is not promised on conditions, as in Judaism. The Gospel's glad tidings are that there is no distinction between God and man. There is no Judaic concern for sin, prayers, rituals, forgiveness, repentance, guilt, punishment, or faith:[H]e knew that it was only by a way of life that one could feel one's self "divine", "blessed", "evangelical", a "child of God". Not by "repentance", not by "prayer and forgiveness" is the way to God: only the Gospel way leads to God—it is itself "God"!