Sorry, I'm not. As you can read in the article for Palestine, the term "Palestine" does derive from the Philistines, but it was given to the land by the Romans only in 135 AD, after the Jewish revolt. In the 20th century it was brought back to life by the British, and thus became recognized world wide as "Palestine". In any case, the Philistines themselves were not present yet in the land in the year 4,000 BC - they arrived around the time of the Israelites/Jews, and they settled mostly in a relatively small strip along the coast, an area which is partly the Gaza strip. You can read more here, if you want.
http://www.palestinefacts.org/pf_early_palestine_name_origin.php

I think that the definition I gave is very factual and clean of any political affiliation.