I’m not sure if this is truth or myth but I read that Zoroastrian influence guided the golden calf-worshipping Hebrews with multiple deities back into a one God religion.
The Zoroastrian influence on Judaism comes much later, mostly during the Hellenistic period. Jews were already fully monotheistic by this time. In my view the most radical statement of monotheism in the Tanakh is a “no” to Zoroastrian dualism. It is found in Isaiah 45 and aimed at Cyrus the Great who would have been a Zoroastrian:
4 For Jacob my servant’s sake, and Israel mine elect, I have even called thee [Cyrus] by thy name: I have surnamed thee, though thou hast not known me.
5 I am the Lord Yahweh], and there is none else, there is no God beside me: I girded thee, though thou hast not known me:
6 That they may know from the rising of the sun, and from the west, that there is none beside me. I am the Lord, and there is none else.
7 I form the light, and create darkness: I make peace, and create evil: I the Lord do all these things.
Note that the reason Cyrus is said not to ‘know’ Yahweh is because God made both evil and darkness. For a Zoroastrian this a dangerous heresy. For a Jew anything else would be an unacceptable compromise of God’s unity.
I have also read that one or all of the three kings were Zoroastrians.
Read the Gospels again. There are no “three kings.” It is Magi who bring gifts to the Christ child and nothing says there were three of them. A magi is a Zoroastrian priest.
And I am most interested in the "Parsi’s of India, whom I believe were Zoroastrians from Persia who migrated east to India but were caught in the crossfires of the Hindu-Muslim conflicts.
I wrote my dissertation on them and it was published as a book entitled
The Death of Ahriman.
I find it most interesting that they are not into proselytizing but spread the faith mostly through their descendants.
Parsis do not believe in conversion because in India only low-caste people would have wanted to convert, and that would have lowered the social status of the Parsi community. Most Irani Zoroastrians, however, do believe in conversion.
