What is Deism?

Deism in religious philosophy is the belief that reason and observation of the natural world, without the need for organized religion, can determine that the universe is the product of an all-powerful creator. According to deists, the creator does not intervene in human affairs or suspend the natural laws of the universe. Deists typically reject supernatural events such as prophecy and miracles, tending instead to assert that a god (or "the Supreme Architect") does not alter the universe by intervening in it. This idea is also known as the Clockwork universe theory, in which a god designs and builds the universe, but steps aside to let it run on its own. Two main forms of deism currently exist: classical deism and modern deism.


The earliest known usage in print of the English term "deist" is 1621 and "deism" is first found in a 1675 dictionary. Deism became more prominent in the 17th and 18th centuries during the Age of Enlightenment — especially in Britain, France, Germany and America among intellectuals raised as Christians who found they could not believe in supernatural miracles, the inerrancy of scriptures, or the Trinity, but who did believe in one God. Deistic ideas also influenced several leaders of the American and French revolutions.

The effects we acknowledge naturally, do include a power of their producing, before they were produced; and that power presupposeth something existent that hath such power; and the thing so existing with power to produce, if it were not eternal, must needs have been produced by somewhat before it, and that again by something else before that, till we come to an eternal, that is to say, the first power of all powers and first cause of all causes; and this is it which all men conceive by the name of God, implying eternity, incomprehensibility, and omnipotence.

—Thomas Hobbes, Works, vol. 4, pp. 59–60; quoted in John Orr, English Deism, p. 76