Marc Chagall once commented if he wasn't Jewish, he might not have been an artist. His faith profoundly influenced his works like "The Praying Jew," for example, as well as a never-before-seen work that Chagall gave to his granddaughter, Bella Meyer. "He tells the story of Shabbat, from back of his memories," Meyer said of the drawing. She recalled watching her grandfather work: "I watched him paint, and I loved it. I adored him." But her grandfather's faith also got him in trouble. In Russia