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Greek Mythology | Hecate

Hecate or Hekate is a goddess in Ancient Greek religion and mythology, most often shown holding two torches or a key and in later periods depicted in triple form. She was variously associated with crossroads, entrance-ways, dogs, light, magic, witchcraft, knowledge of herbs and poisonous plants, ghosts, necromancy, and sorcery. She was one of the main deities worshiped in Athenian households as a protective goddess and one who bestowed prosperity and daily blessings on the family. 

The first literature mentioning Hecate is the Theogony by Hesiod: 

Hecate whom Zeus the son of Cronos honored above all. He gave her splendid gifts, to have a share of the earth and the unfruitful sea. She received honor also in starry heaven, and is honored exceedingly by the deathless gods. For to this day, whenever any one of men on earth offers rich sacrifices and prays for favor according to custom, he calls upon Hecate. Great honor comes full easily to him whose prayers the goddess receives favorably, and she bestows wealth upon him; for the power surely is with her. For as many as were born of Earth and Ocean amongst all these she has her due portion. The son of Cronos did her no wrong nor took anything away of all that was her portion among the former Titan gods: but she holds, as the division was at the first from the beginning, privilege both in earth, and in heaven, and in sea.