I also skipped most of the comments posted, but to answer the original question, this belief has been taught since Christs time. I am a big fan of early Christianity, and it is constantly taught, and can be seen throughout time even until the Restoration. I have a lot of quotes and info on this, so if you have any questions, feel free to drop me a line. In the meantime, this should answer your question:
Deification of man - FAIRMormon