(43) According to the Persians, there coexisted in eternity two principles. The first of these, Ahura-Mazda, or Ormuzd, was the Spirit of Good. From Ormuzd came forth a number of hierarchies of good and beautiful spirits (angels and archangels). The second of these eternally existing principles was called Ahriman. He was also a pure and beautiful spirit, but he later rebelled against Ormuzd, being jealous of his power. This did not occur, however, until after Ormuzd had created light, for previously Ahriman had not been conscious of the existence of Ormuzd. Because of his jealousy and rebellion, Ahriman became the Spirit of Evil. From himself he individualized a host of destructive creatures to injure Ormuzd.

(9) Aye, they who desert Thy bountiful Piety, O Mazda! that one desired of Thee , O Thou omniscient! and who thus abandon her by reason of the evil-doer, and in their ignorance of (Thy) Good Mind, from such as these (Âramaiti) with her holiness utterly departs as the red Khrafstras (who destroy and pollute all life, flee) from us (Thy faithful servants).

(5) (Then when they had finished each his part in the deeds of creation, they chose distinctly each his separate realm.) He who was the evil of them both (chose the evil), thereby working the worst of possible results, but the more bounteous spirit chose the (Divine) Righteousness; (yea, He so chose) who clothes upon Himself the firm stones of heaven (as His robe). And He chose likewise them who content Ahura with actions, which (are performed) really in accordance with the faith .