Maybe.. or maybe he is talking to the angels.. or just talks about himself as we and our and us because he is so important, it has been done by kings and such..
Well the talking to the angels part.. I read this http://www.jimmcguiggan.com/reflections3.asp?status=Creation&id=372 it might be something. I'm,sadly enough, no theologist so I can't answer your questions that well
I'll bite the bait. I don't know much about the bible as it is.