Throughout the ancient era in the middle east, there were many gods self imagined and accordingly worshiped, entwined within
those beliefs of these gods, stories were told by the select worshipers to create an identity and relevance toward those gods.
This is also what the ancient Hebrews did toward their god YHWH, you could even say there was a competition of whose god was the
greatest and most powerful among these distinct civilizations.
What makes the Hebrew civilization stand out a little bit more is that these people scribed
their stories as they were told as a means to create a sacred text (word of God). Other civilizations eventually followed in this same manner such as the
writing of the Quran, the word of Allah toward the chosen prophet Mohammad.
The point is these ancient scribes were under an initiative to create as much relevance toward their god of choice and in doing so they created
their own relevance within their own set social societies.
So when someone says that certain sacred writings were actual eye witness accounts, one should take this information into account.