There are at least 2 ancient pagan flood stories: The Gilgamesh Epic and the Atrathasis Epic, both originating in ancient Mesopotamia. Because both sources predate the source of Noah's story, many scholars have concluded that Noah's flood story was borrowed from these. However, consider the following objections:
- When a historical event is retold to different audiences over time, the story generally becomes more mythical and embellished, and poetry and exalted language are used. It is the opposite when Noah's and the pagan stories are compared. Noah's story is simpler and told in a straightforward narrative, while the pagan stories are told in a more mythical and embellished style.
- Noah's story is monotheistic, and the characters are ethically moral. The pagan stories are polytheistic, and the characters are ethically capricious. The pagan gods are implied to be selfish, jealous of each other and lie to each other. Moreover, in the Atrathasis Epic the gods discover that due to the flood, they have wiped out their only source of food (people's sacrifices) implying that they depend on humans.
- The shape of the ark in Noah's story is the only one that can be considered seaworthy, being rectangular and in dimensions similar to more modern cargo barges. The pagan stories describe an ark that is round or cubic, which would make an ark less stable for floatation and also more vulnerable to damage/overturning by wave impact.
It is therefore more likely that Noah's story with its later source is faithful to the actual historical event; while the pagan stories are versions modified to suit the polytheistic religion/culture of their audiences. At the same time, it is remarkable that the pagan stories confirm that a history changing flood did occur.