I haven't read much about the “emergent” stuff, although the dispensation view has always given me shivers due to the fact that save for a few Gnostic details it's almost identical to the Marcion heresy of old. Even the fact that it doesn't outright declare itself Gnostic doesn't carry much weight when you see surveys like the one
"Christianity Today" took of Evangelical Dispensationalists in 1980 that showed only 43% of them would agree that Jesus is both fully human and fully God.
In what way does the emergent church go down the road to apostasy? Like I say, I haven't paid much attention to it.
Gnostic's believed in hidden knowledge. I think most of the dispensationalist publish who they came to their understanding of scripture and really don't feel like they are part of a chosen few who have special revelation etc. No we are not gnostics in any sense. Marcion Heresy isn't really will understood because most of the tests are lost except for criticism of it. My understanding is that they denied the God of Abraham. Isac and Jacob and the relevance of the Old Testament Scripture. Most of the dispenstionists also use Old Testament Scripture as I did to validate my beliefs. I think calling a belief a heresy with out really understanding the heresy is a little strange!