Revenge as a question to the authenticity of religion

It is interesting that in many creation stories there are floods. Not only are there floods, but the floods are usually an act of vengeance. In Christianity's case, because man attempted to reach heaven. In Ovid's Metamorphoses, similarly men attempted to reach the realm of the gods. Then as an act of vengeance towards the human race the gods/god wipe out the human race. the fact that both of these stories have stunning parallels calls to question the possibility that religions such as Christianity and other creation stories that include the idea of "the great flood" perhaps stole the idea from Greek literature.