@muhammad_isa said: "I don't think that anybody can show that Moses didn't exist."
The biblical account of Exodus does not have to be true in order for Moses to have existed as a real person in history. Whether you believe He was a Messenger of God/Prophet or not is another matter. Such a thing cannot be proven which is why it is a religious belief rather than a fact.
Baha'is believe that Moses was a Messenger of God/Prophet, but we do not believe that Exodus as delineated in the Old Testament represents historical facts.
The Ten Plagues of the Exodus in Light of the Bahá’í Writings
JoAnn Borovicka
www.JoAnnBorovicka.com
Based on: “The Ten Plagues of the Exodus in Light of the Baha’i Writings” by JoAnn Borovicka in Lights of ‘Irfan - Book 16
(Bahai-Library.com)
Overview
1: The Exodus Narrative and Theories
The Exodus narrative is an important ancient tradition. There is compelling evidence that the story does not represent literal historical facts.
2: Understanding Bahá’í References
The Bahá’í Writings sometimes refer to the Exodus narrative as if it really happened. These references validate the spiritual truths contained in the scripture; however, they do not validate the story as historical fact.
3: Inner Meanings in the Exodus Narrative
The Exodus narrative contains spiritual truths that are universally relevant.
Read more:
https://wilmetteinstitute.org/wp-content/uploads/2020/05/BorovickaJan2018WebTalk.pdf