I think the flood occurred 120 years after God said this. IOW God was saying 120 more years and then its gonna rain!
I had heard this explanation, but it would have to mean that the warning came when Noah was 480 years old. This would have to mean that Gen 6:1-3 , refers to a time before Gen 5:32, as this talks of Noah being 500 years old....Hmmmm....
[This message has been edited by judge, 12-14-2002]