Do you take the bible literally or metaphorically on prophecy?

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But as the days of Noah were, so also will the coming of the Son of Man be. Some people are looking at this scripture in new light and meaning as they look at the current world around them. It used to be understood that it meant nothing more than people will be going on with their normal lives and get a big surprise at Christs return. Now people are looking at the days of Noah and the things that were going on and maybe why Noah was considered perfect. It used to be that people considered Noah to be all that and a bag of chips as far as being righteous but they now think that maybe the perfection that was being talked about was not a spiritual perfection but a gene pool perfection of what humanity is. In the days of Noah it speaks of a mixture of human genes with the genes of the the angels who came down to earth and took women as their wives. The same people that see it in this sense instead of the other way say that things like non-organic genetically altered foods and the manipulation of species using current science may be a bigger sign than any of what Jesus was talking about. For those of you who don't know about what I am talking about there is a whole world of research and changes going on right under our noses like the goats with spider DNA that are used to make body armor from their milk or plants that are being raised with live virus and a mixture of other DNA. Of course the worlds ruling elite are eating organic food (regular) while we seem to be fed this garbage. What do you think? Is there a connection? If you don't think there is a coincidence do you think that altering DNA in food is for our benefit?