Some writers such as Karen Armstrong believe that the concept of monotheism sees a gradual development out of notions of henotheism and monolatrism. In the Ancient Near East, each city had a local patron deity, such as Shamash at Larsa or Sin at Ur. The earliest known claims of global supremacy of a specific god date to the Late Bronze Age, with Akhenaten's Great Hymn to the Aten, and, depending on dating issues, Zoroaster's Gathas to Ahura Mazda. Currents of monism or monotheism emerge in Vedic India in the same period, with e.g. the Nasadiya Sukta. Philosophical monotheism and the associated concept of absolute good and evil emerges in Classical Antiquity, notably with Plato (c.f. Euthyphro dilemma), elaborated into the idea of The One in Neoplatonism.
According to The Oxford Companion To World Mythology, "The lack of cohesion among early Hebrews made monotheism – even monolatry, the exclusive worship of one god among many – an impossibility...And even then it can be argued that the firm establishment of monotheism in Judaism required the rabbinical or Talmudic process of the first century B.C.E. to the sixth century C.E.".[29] In Islamic theology, a person who spontaneously "discovers" monotheism is called a ḥanīf, the original ḥanīf being Abraham.
Austrian anthropologist Wilhelm Schmidt in the 1910s postulated an Urmonotheismus, "original" or "primitive monotheism", a thesis now widely rejected in comparative religion but still occasionally defended in creationist circles.
Monotheism and pantheism
Monotheists hold that there is only one god, and may claim that the one true god is worshiped in different religions under different names. The view that all theists actually worship the same god, whether they know it or not, is especially emphasized in Hinduism[30] and Sikhism.[31] Adherents of different religions, however, generally disagree as to how to best worship God and what is God's plan for mankind, if there is one. There are different approaches to reconciling the contradictory claims of monotheistic religions. One view is taken by exclusivists, who believe they are the chosen people or have exclusive access to absolute truth, generally through revelation or encounter with the Divine, which adherents of other religions do not. Another view is religious pluralism. A pluralist typically believes that his religion is the right one, but does not deny the partial truth of other religions. An example of a pluralist view in Christianity is supersessionism, i.e., the belief that one's religion is the fulfillment of previous religions. A third approach is relativistic inclusivism, where everybody is seen as equally right; an example in Christianity is universalism: the doctrine that salvation is eventually available for everyone. A fourth approach is syncretism, mixing different elements from different religions. An example of syncretism is the New Age movement.
Pantheism holds that God is the universe and the universe is God, whereas Panentheism holds that God contains, but is not identical to, the Universe; the distinctions between the two are subtle. It is also the view of the Liberal Catholic Church, Theosophy, some views of Hinduism except Vaishnavism which believes in panentheism, Sikhism, some divisions of Buddhism, some divisions of Neopaganism and Taoism, along with many varying denominations and individuals within denominations. Kabbalah, Jewish mysticism, paints a pantheistic/panentheistic view of God — which has wide acceptance in Hasidic Judaism, particularly from their founder The Baal Shem Tov — but only as an addition to the Jewish view of a personal god, not in the original pantheistic sense that denies or limits persona to God.
Dystheism and nontheism
Dystheism, which is related to theodicy is a form of theism which holds that God is either not wholly good or is fully malevolent as a consequence of the problem of evil. One such example would be Satanism.
Nontheism holds that the universe can be explained without any reference to the supernatural, or to a supernatural being. Some non-theists avoid the concept of God, whilst accepting that it is significant to many; other non-theists understand God as a symbol of human values and aspirations. Many schools of Buddhism may be considered non-theistic.