Anarchists have traditionally been skeptical of or vehemently opposed to organized religion. Nevertheless, some anarchists have provided religious interpretations and approaches to anarchism, including the idea that glorification of the state is a form of sinful idolatry.
Anarchists "are generally non-religious and are frequently anti-religious, and the standard anarchist slogan is the phrase coined by the (non-anarchist) socialist Auguste Blanqui in 1880: ‘Ni Dieu ni maître!’ (Neither God nor master!)...The argument for a negative connection is that religion supports politics, the Church supports the State, opponents of political authority also oppose religious authority".
William Godwin, "the author of the Enquiry Concerning Political Justice (1793), the first systematic text of libertarian politics, was a Calvinist minister who began by rejecting Christianity, and passed through deism to atheism and then what was later called agnosticism." The pioneering German individualist anarchist Max Stirner, "began as a left-Hegelian, post-Feuerbachian atheist, rejecting the ‘spooks’ of religion as well as of politics including the spook of ‘humanity’".Pierre-Joseph Proudhon, "the first person to call himself an anarchist, who was well known for saying, ‘Property is theft’, also said, ‘God is evil’ and ‘God is the eternal X’".
Published posthumously in French in 1882, Mikhail Bakunin's God and the State was one of the first Anarchist treatises on religion. Bakunin expounds his philosophy of religion's place in history and its relationship to the modern political state. It was later published in English by Mother Earth Publications in 1916. Anarcho-communism´s main theorist Peter Kropotkin, "was a child of the Enlightenment and the Scientific Revolution, and assumed that religion would be replaced by science and that the Church as well as the State would be abolished; he was particularly concerned with the development of a secular system of ethics which replaced supernatural theology with natural biology".