In the Bible God deeded the land of Canaan to Abraham, where upon he took it by force. Canaan became the land we know as Israel now. Actually, it is what the creation of the current State of Israel is founded on. Lets say we take it to court. Can the Bible be used as a legal document of proof of ownership of the State of Israel?

If you took out the religious furor and prejudice, then the bible as a legal deed would fail.
I could write up a document stating my neighbour ceded his land to me, going into all kinds of descriptions and allegorical conversations, BUT without the signature of my neighbor, and those of witnesses, it is not a legal document.

Unfortunately that's basically what the UN did in their Declaration of the Establishment of the State of Israel. It reads in part:

The Land of Israel was the birthplace of the Jewish people. Here their spiritual, religious and political identity was shaped. Here they first attained to statehood, created cultural values of national and universal significance and gave to the world the eternal Book of Books.

After being forcibly exiled from their land, the people kept faith with it throughout their Dispersion and never ceased to pray and hope for their return to it and for the restoration in it of their political freedom.
...
On the 29th November, 1947, the United Nations General Assembly passed a resolution calling for the establishment of a Jewish State in Eretz-Israel; the General Assembly required the inhabitants of Eretz-Israel to take such steps as were necessary on their part for the implementation of that resolution. This recognition by the United Nations of the right of the Jewish people to establish their State is irrevocable.

SOURCE
http://en.wikipedia.org/wiki/Land_of_Israe...State_of_Israel

Sadly, we all know the consequences of such actions. To say the Jews own the land because their god said so is beyond the asinine. Immeasurable suffering has been the result. The Jews are an offshoot of the Canannites and share a deep cultural context (e.g. the God El, language etc.). But thanks to religion and the Zionists et al, we have a seemingly endless tumult--one that in all likelihood will end with war.

Zionism
http://www.mideastweb.org/zionism.htm

Who Owns the Holy Land? (Lloyd Geering, Lecturer, St. Andrew's Trust for the Study of Religion and Society, and Emeritus Professor of Victoria University of Wellington, New Zealand)
http://www.westarinstitute.org/Periodicals.../holylandi.html

"Israel emerged peacefully and gradually from within Canaanite society"--A History of Jerusalem, Armstrong, Karen, p.23

... And archaeology surprisingly reveals that the people who lived in those villages were indigenous inhabitants of Canaan who only gradually developed an ethnic identity that could be termed Israelite.--The Bible Unearthed, Finkelstein and Silberman, p.98

So, can the Bible be used as a legal document? It has. Should it have? HELL NO!

Kindly,

Sean

Well, if we took the Bible out of the equation, who else would own the land? I mean, if Israel had the power to take it, than...so? I mean, we took America from the Natives. So do we have a right to wonder if Israel has a right to the land because of the Bible? I mean at least they had a reason.

So if the Palestinians manages to beat Israel they can have their country back?

Sure why not?

If they did, they could always claim their god promised it to them.

There are precedents:
Divine right of Kings
Manifest Destiny
"god is on our side"

Not very legal, but the precedent is there.