God didn't write the Bible.
He inspired it, and chosen men wrote it down.
The Flood is not a lie at all. Anyone who does a legit study of it will most likely come to the conclusion by the evidence that exist that yes there was a worldwide flood as described in the Book of Genesis.
Faith in God inspired men to write about the doings of God, as they
speculated about such things relative to themselves. Their human and cultural bias is included in the depiction of a God fashioned largely in their own image. Genocide, child rape, murder, magic, man made rules of conduct, arrogance, myth making, redactions, more exaggerations, all this in the "fetish book" of the Israelites appropriated narratives.
The false doctrine of the inspiration of scripture is an invention of the men in the priesthood who rely on it
for their authority.
Anyone who study's the earth can see that there have been millions and billions of "floods" and mudslides that preserve the fossilized remains that we find today by simply digging them up. The dirt beneath our feet was once alive.
Unable to trace their bloodlines back to the presumptive "first two humans", the Hebrew priest class decided to
drown the whole world in its wickedness to fill in the......... gap......... between themselves and ancient Mesopotamian lore about Adam.
Finalized in Babylon, after loosing their Temple and their nation, the priest class went to the other extreme in creating a comprehensive story of origins of the Israelites and for an Israelite audience. Like Lucifer, they elevated themselves high above their Semitic cousins whom they consider "dogs".
*The evolved earth was populated when Adam arrived in ancient history. Cain fears people out away from the garden.
*The "crafty beast" was already fallen when he approached Eve. When then did he fall?
We were to start out fresh with the new religion of The Gospel of the Kingdom of Heaven taught and lived by Jesus. He warned us NOT to sew the new cloth onto the old, but most of his early followers were Jews who naturally tried to connect his religion to their old religion.