Theocracy

Theocracy is a form of government in which a god or deity is recognized as the state's supreme civil ruler, or in a higher sense, a form of government in which a state is governed by immediate divine guidance or by officials who are regarded as divinely guided. In Common Greek, “theocracy” means a rule [kra′tos] by God [the.os′]. For believers, theocracy is a form of government in which divine power governs an earthly human state, either in a personal incarnation or, more often, via religious institutional representatives (i.e., a church), replacing or dominating civil government. Theocratic governments enact theonomic laws.

Theocracy should be distinguished from other secular forms of government that have a state religion, or are merely influenced by theological or moral concepts, and monarchies held "By the Grace of God".

A theocracy may be monist in form, where the administrative hierarchy of the government is identical with the administrative hierarchy of the religion, or it may have two 'arms,' but with the state administrative hierarchy subordinate to the religious hierarchy.

Theoracy came into the fore in modern politics with the Iranian Revolution.

Source: Wikipedia