Hmmmm....I've been rather busy lately but I noticed this conversation and thought it was rather interesting. Actually Dr. E and 1000's remark took me by surprise and I had to look it up. They have a very good point that souls were created before the world. Here is a rather interesting article about the two views:
While I think Dr. Turretin makes many valuable points, I think one of the most interesting verses is:
This would indicate that the spirit is given to us (like Adam) and returns to God. One has to apply this to our Lord Jesus who gave up His Spirit. Did Christ's spirit exist before He was created and, how exactly is Christ's spirit created?
I believe Dr. Turretin brings up a number of very valuable points showing the human soul being created in the beginning, not propagated.
Personally, I don't understand how any of this is "Gnostic". It is a fun term to throw around.
Then, perhaps, you should read more... :)