Christopher Jon Bjerknes
The Israelis used to claim their supposed right to exist were based upon such mundane instruments as the Balfour Declaration and United Nations Resolution 242. They have changed tactics. They now claim a biblical right to exist.
This enables the Israelis to assert ancient rights to vastly greater territories and justify the land grabs as fulfillment of their god's covenant with them. This also justifies, in their minds, their fulfillment of Jewish messianic prophecies.
The shift from political justifications for their existence to religious justifications is a quite significant and immensely dangerous one worth taking note of. They are using it to make the Talmud the law of the land in Israel. That means they intend to govern the world under Talmudic law.