Huh... I was looking for instances of the name Rachel on Lost and found this page on lostpedia.... so obviously I am not alone in my theory.... dang it.
http://lostpedia.wikia.com/wiki/Christianity - scroll down halfway down the page for the story of Jacob and Esau.
edit: Now it's not quite as fun......
edit2: Flaco - that's an interesting theory but I'm not sure why he would have him locked up. That is odd though that they brought alot of attention to it.