Dualism In Christianity and Zoroastrianism Christianity and Zoroastrianism share many of the same basic thoughts on the subject of dualism and cosmic warfare. Both religions are monotheistic and Christianity is thought to have some what sprung out of the ideals of the profit Zoroaster. The two religions share the belief of good versus evil in their end times eschatology. The differences can be found in the names of the spirits as well as in what they are thought to do. Zoroastrianism and Christianity share ideals but also hold their own unique belief on the subject of cosmic dualism. Zoroastrianism was the first founded monotheistic religion. The dates of the fo