Characteristics
Even though Ahura Mazda was a deity in the Old Iranian religion, he had not yet been given the title of "uncreated God". This title was given by Zoroaster who proclaimed Ahura Mazda as the uncreated God, wholly wise, benevolent and good, as well as the creator and upholder of Arta ("truth"). As Ahura Mazda is described as the creator and upholder of Arta, he is a supporter and guardian of justice, and the friend of the just man. Zoroaster stated that Ahura Mazda was not an omnipotent God, but one that could destroy evil eventually. While Ahura Mazda was not omnipotent, Zoroaster stated that Ahura Mazda was still omniscient.
Zoroaster also spoke of a rival to Ahura Mazda, who was similarly uncreated. This rival was the evil spirit, Angra Mainyu. One of Ahura Mazda's objectives has been to destroy Angra Mainyu and create a universe which is completely good. To achieve such a universe, Ahura Mazda initially offered Angra Mainyu peace, which Angra Mainyu refused. Ahura Mazda then set out to establish a spiritual army. One of his first acts was the creation of the seven Amesha Spentas, who were spirits to monitor and protect each of the seven creations.
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