This paper deals with Chaim Potok`s two novels, The Chosen and I Am the Clay which were published respectively in 1967 and 1992. In the beginning period of his writings Potok usually focuses on the narrow areas of Judaic Society struggling with religious issues such as Holocaust, anti-semitism and Hasidism. However, his experiences in Korea in the mid-1950s just after the Korean War drastically changed his life, viewpoints and writings. If the successful friendship and harmony between Danny and Reuven, the two Jewish boys in The Chosen, represent the imaginative power of Hasidism between deferent denominations (i.e., Hasidism and Modern Orthodox) among the small Jewish society, the Korean orphan Sin Gyu Kim in the another fiction is a model of non-Jewish good-natured man. In these two novels Potok commonly emphasizes that the mysticism and enthusiasm the young protagonists feel in their world are actually the source of joy and meaning against the suffering and evil, just as Hasidism finds its profound energy in the unity with the deity in everything thorough the pious activities denying any nihilism. In this regard, the adolescent protagonists in his novels are the secular version of spiritual leaders in the modern material world who are equivalent to Moses in the Old Testament era,