In this video from the PBS series The Story of the Jews, host Simon Schama travels to the Valley of Elah to visit the site of the biblical story of David and Goliath. He meets with archaeologist Yossi Garfinkel to discuss his theory that the famous battle between the shepherd and the giant reflects hundreds of years of conflict between the hill-dwelling Judeans and the coastal Philistines. Garfinkel takes Schama to the site of an Iron Age Judean fortress where he has discovered an altar and two ceremonial containers, or arks, which may be clues to the origins of Jewish monotheism.