 Complete the following phrase:  Abraham Isaac Kook 18651935, the Ashkenazi Chief Rabbi of Mandate Palestine, urged that Jewish settlement of the land should proceed by peaceful means only. Contemporary settler movements follow Kooks son Tzvi Yehuda Kook 18911982, who also did not advocate aggressive conquest. Critics claim that Gush Emunim and followers of Tzvi Yehuda Kook advocate violence based on Judaisms religious precepts. Ian Lustick, Benny Morris, and Nur Masalha assert that radical Zionist leaders relied on religious doctrines for justification for the violent treatment of Arabs in Palestine, citing examples where pre-state Jewish militia used verses from the Bible to justify their violent acts, which included expulsions and massacres such as the one at 