No, evil and good were obvious. The Great Flood was to rid the world of the evil that existed. The Commandments of God just codified it.
Exactly my point.
I have nothing against the codification mind you. Every religion does it. But it's the priests and scribes of the religion that are commenting on what already exists and what is already known in the heart of humans. There is no revelation. The religion follows. It's not the staring point.