Amun's name signified "the Hidden," and his nature was, by his own theological description, beyond knowing. "His name is hidden from his children," runs the great Cairo hymn; "he hides his form even from the gods." He was originally a local god of Thebes, in Upper Egypt, and as Thebes rose in the Middle Kingdom (c. 2000 BCE) and again in the Eighteenth Dynasty (c. 1550 BCE) to become the imperial capital of Egypt, Amun rose with it. By the New Kingdom he was the chief god of the Egyptian state; his great temple at Karnak — successively expanded by every pharaoh of significance, until it had grown to the largest religious complex in the ancient world — was the wealthiest landholder in the kingdom. Amun was identified in this period with the older Heliopolitan sun-god Ra, producing the great composite Amun-Ra, who held simultaneously the hiddenness of Amun and the brilliance of Ra: present everywhere and visible nowhere.
His consort was Mut the great mother; their son was Khonsu the moon; the three formed the Theban triad, whose temples stood across the Nile from Thebes proper, on the western bank, and who were each year, at the festival of Opet, carried in solemn barque-processions from Karnak south to Luxor and back, receiving the offerings of the city and renewing the kingship of the pharaoh. Amun's emblem was the ram with curling horns, and rams were sacred to him; an avenue of ram-headed sphinxes still leads up to the great temple at Karnak.
The hymns of the Amun priesthood elaborated his hiddenness into something approaching philosophical monotheism: "All gods are three: Amun, Ra, and Ptah, whom none equals. He whose name is hidden as Amun, he is Ra in face, his body is Ptah." The doctrine that the great gods are three names of one god, without their distinction being merely nominal, was articulated by the Theban theologians of the Ramesside period in language strikingly close to that of much later trinitarian formulations. But the priesthood did not push it to the rigorous monotheism of later traditions; the lesser gods continued to receive their cult.










