Did Zoroastrianism influence the development or emergence of the Abrahamic religions?
I’m asking because aren’t the oldest Zoroastrian texts from the sixth century A.D.?
u/lcnielsen has responded to part of this here: https://www.reddit.com/r/AskHistorians/comments/aimx8s/was_zoroastrianism_the_source_for_christianity/eeq0ynh
Frankly their post history on this subreddit addresses a lot of dimensions of this, particularly with regard to Judaism and Christianity. I would recommend reading through it.
As for Islam, u/NomadicCircle has some specific points here: https://www.reddit.com/r/AskHistorians/comments/6u87k7/what_influence_if_any_did_zoroastrianism_have_on/dlsbk7b
It's worth also considering that Islam (and Judaism, Christianity, Zoroastrianism, or any other religion ofc) is not monolithic. While I can't say this authoritatively, I wouldn't be shocked if Zoroastrianism's influence is felt most especially in modern times within Shi'a Islam, given its historical (though still relatively recent) anchoring in the original home of Zoroastrianism.
Edit: on mobile, corrected typos.