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From the earliest ages, the concept of the Great Goddess was a trinity and the model for all subsequent trinities, female, male or mixed.  Anatolian villages in the 7th millennium B.C. worshipped a Goddess in three aspects � as a young woman, a birth-giving matron, and an old woman.  (See, Merlin Stone, When God Was A Woman at 17). 

This typical Virgin-Mother-Crone combination was Parvati-Durga-Uma (Kali) in India, Ana-Babd-Macha (the Morrigan) in Iceland, or in Greece Hebe-Hera-Hecate, the three Moerae, the three Gorgons, the three Graeae, the three Horae, etc.  Among the Vikins, the threefold Goddess appeared as the Norns; among the Romans, as the Fates or Fortunae; among the Druids, as Diana Triformis.  The Triple Goddess had more than three: she had hundreds of forms.

Pre-Roman Latium worshipped her as the Capitoline Triad under the collective name of Uni, �The One,� a cognate of yoni.  Her three personae were Juventas the Virgin, Juno the Mother, and Menarva or Minerva the wise Crone.  Under the empire, Juventas was ousted to make room for a masculine member of the trinity, Jupiter.  (See, Georges Dumezil, Archaic Roman Religion at 116). 

Some modern scholars refer to the two-female, one-male Capitoline Triad of the later period as �three gods� � as if they might describe a group of two women and one man as �three men.�  (See, J.B. Carter, The Religious Life of Ancient Rome at 26).

 
Cumont says, �Oriental theologians developed the idea that the world forms a trinity; it is three in one and one in three.�  (See, Franz Cumont, Astrology and Religion Among the Greeks and Romans at 69).

The masculine scholar substitutes the neuter �world� for �Goddess,� though they were in a sense synonymous.  It was she who established the Trinitarian form of Creator, Preserver, and Destroyer.  Even though Brahmans evolved a male trinity of Brahma, Vishnu, and Shiva to play these parts, Tantric scriptures insisted that the Triple Goddess had created these three gods in the first place.  (See, Amaury de Riencourt, Sex and Power in History at 167).

Mother of the Greek gods was a trinity composed of Virgin Hebe, Mother Hera, and Crone Hecate; at Stymphalus she was worshipped as Child, Bride, and Widow.  (See, Robert Graves, The Greek Myths at 1, 52).

Each of her personae could be a trinity again, so she could be the Muses or the Ninefold Goddess.  Hecate was called Triformis and shown with three faces, each a lunar phase.  Among the Irish she was the Triple Morrigan, or Morgan, sometimes multiplied into �nine sisters� who kept the Cauldron of Regeneration and ruled the western isle of the dead.  (See, Robert Graves, The White Goddess at 406; Alwyn & Brinely Rees, Celtic Heritage at 193).

The Goddess Triformis ruled heaven as Virgin, earth as Mother, and the underworld as Crone, or Hel, or Queen of the Shades.  This was remembered even in Chaucer�s time, for his Palamon invoked her �Three Forms,� Luna in heaven, Diana on earth, Proserpine in hell.  (See, Chaucer, The Canterbury Tales at 81, 511).  The old name of Sicily, Trinacria, invoked her as a �center of the earth� with three realms.

 
Bardic romances abounded in manifestations of the Triple Goddess.  Wayland the Smith married her, after she first appeared to him as three magic doves.  (See, Thomas Keightley, The World Guide to Gnomes, Fairies, Elves and Other Little People at 215)  King Arthur went to Avalon with her.  The triadic Guinevere was another version of her.  Sir Marhaus (Mars) encountered her as the Three Damosels at their magic fountain: the eldest �threesome winters of age, wearing a garland of gold; the second thirty winters of age, wearing a circlet of gold; the youngest fifteen winters of age, wearing a wreath of flowers.�  (See, Sir Thomas Malory, Le Morte d�Arthur at 1, 115).  Fifteen was the number of the pagan Virgin Kore, the pentacle in the apple.  Mythic virgin mothers, like that of Zoroaster, typically gave birth at the age of fifteen.  Double that was the Mother�s age, double again the age of the Crone.

The notion of a trinity appeared during the 14th century B.C., a popular Babylonian trinity was composed of Shamash, Sin, and Ishtar � Sun, Moon, and Star.  In Greece this was repeated as Helios the sun, Selene the Moon, and Aphrodite the star.  A Father-Mother-Son trinity was worshipped at Costopitum as Jupiter Dolichenus, Celestial Brigantia and Salus.  (See, Jack Lindsay, The Origins of Astrology at 112, 328, 375; Dorothy Norman, The Hero at 71).

 Gnostic versions of the trinity followed the Father-Mother-Son patterns of the contemporary east, with the Holy Ghost recognized as a female Sophia, the Dove, worshipped as the Great Goddess in Constantinople, and viewed by most Gnostics as the Shakti of God.  The Christian God was originally modeled on Far-Eastern heaven-fathers such as Brahma and Dyaus Pitar, all of whom needed their female sources of �Power,� or else they could not act.  (See, Heinrich Zimmer, Myths and Symbols in Indian Art and Civilization at 25) 

Therefore, a female member of the triad was essential even to God.  Among Arabian Christians there was apparently a holy trinity of God, Mary, and Jesus, worshipped as an interchangeable replacement for the Egyptian trinity of Osiris, Isis, and Horus.  (See, Geoffrey Ashe, The Virgin at 206).

 During the Christian era, all-male trinities became popular among Germanic tribes.  Woden, Thor, and Saxnot were worshipped together by the Saxons of the 8th and 9th centuries.  Norsemen called them Odin, Tyr, and Frey.  According to a certain fragmentary myth, the Triple Goddess seems to have burned as a witch.  She had to be burned to ashes three times.  Afterward, youth, beauty, and love in the person of Freya departed from Asgard; and there was war in heaven.  (See, Brian Branston, Gods of the North at 112, 213-14).

"The spokesman for the group replied, �concerning Jesus we can only say what our Prophet has taught us: Jesus is the servant and messenger of God, the spirit and word of God, whom God entrusted to the Virgin Mary.�"