The paper aims to do a comparative research on foreign social services and cultural understanding of the religious organizations of Korea and of the United States which have been active in Cambodia. The results of the research will be helpful to contribute to develop the support policies of the government authority to religious NGOs and to achieve more effective results in the field of international development by the religious NGOs in Korea. The first part of the paper defines some concepts on community development, international cooperation NGOs, understanding of culture, and foreign social services of the religious organizations. Further the paper makes clear the practical structures of goals and processes of the social service (community development) of religious NGOs which transform the religiocultures of the native population. The second and third parts analyze the religious NGOs of Korea and of the United States. The activities in Cambodia and staff education on the culture of the 12 religious NGOs of Korea are examined to influence the community development or social service which is closely related to cultural change. The third part discusses the activities and staff education of the 7 religious (Christian) NGOs of the U.S. which have practiced the social services in Cambodia. The fourth part compares with the merit points of the religious NGOs of the two countries and discusses the issues of NGO activities in the fields. Finally the paper suggests three points to the NGO authorities in Korea such as financial support of the government authority to the religious NGOs, enforcement of religiocultural education for the staffs of the religious NGOs, and establishment of new department such as world relief service by the denomination basis in the Korean churches.

This thesis aims to Know the views of the religious reformers including Jan Hus, Martin Luther and Jean Calvin on missionary work, and to know if they actually partake in missionary activities themselves. How did their views on mission influence the way in which future generations conduct missionary work? To approach this theme, we must first establish a clear definition of what missionary work is. And lastly, according to Karl Hartenstein, missionary work is to participate in God’s mission, that is Missio Dei. The author of this paper is interested in the latter definition since this concept seems to have originated from the religious reformers. Jan Hus placed the authority of the Bible over the authority of the church. According to him, the missionary work is to reform the church, when it goes away from the truth of the Bible. According to Martin Luther, the missionary work is the salvation of the world by the promulgation of the Gospel: “only by the belief in Jesus Christ.” According to Jean Calvin, man’s salvation depends upon only God’s sovereignty. Therefore, only God can practice the missionary work by his sovereignty. Like Jan Hus, Luther made efforts to reform the church, when it went away from the truth of the Bible. Jean Calvin taught many theologians in Geneva and sent them to France and other European countries. The religious reformers exerted an important effect upon today’s church. They taught us what is the genuine meaning of missionary work and what must be the direction of today’s missionary work.