If this was a merely human story you’d expect God’s bold attempt at drastic punishment to have an equally bold result. Either humanity reformed, or the rebellion gets deeper 
But of course neither is possible. humanity is unreformable, just try making a few worthwhile New Year’s resolutions to prove that nor is rebellion any deeper possible. So what we get instead is a second old-fashioned word, to add to the collection of outmoded terms we began with “sin” earlier.
Here’s the story Genesis 8:1-9:17.
