Whether Jesus was merely mortal or the incarnation of the Living God has been hotly debated ever since his crucifixion and alleged resurrection. I would suggest that there can be no authentic Christianity if Jesus was not divine, though many in this age would claim otherwise, saying that Jesus was a man of such great spiritual insight that we have much to gain from his teachings, nevertheless.
Pastor/blogger Mark D Roberts is a very gifted writer and Christian apologist who has started a new faith series on this very question, entitled Was Jesus Divine? This is his introduction to the topic, and I'm looking forward to what he has to say.
As Rev. Roberts correctly points out, if Jesus was/is divine, it means that Christianity is not just another religious faith, but a faith that commands our attention to the exclusion of others. Not a popular idea in this egalitarian age. Take a look.
Ed. note: For those of you who love old westerns, please note that we are not claiming that Jesus was Devine, i.e. an early incarnation of the not-terribly-bright cowboy sidekick Andy Devine, whose voice would assault the ears of an accordian player. Just wanted to clear that up.