Environmental, social, and governance (ESG) criteria, currently used as a set of standards by socially conscious investors to evaluate a company’s operations before investing, are becoming an important global trend today. In particular, environmental and ecological crises are increasingly being seen as issues that will determine the sustainability of human civilization. Scholars of religion have been paying more attention to the issue as well. In fact, religion and environmentalism have emerged as sub-disciplines in, among others, religious ethics, religious studies, the sociology of religion, and theology. In view of this development, this paper aims to reexamine Minjung theology, literally meaning “the people’s theology”, which arose as a form of liberation theology in South Korea in the 1970s, from an ecological perspective, particularly focusing on the former’s view on the relationship and interrelationship between the individual and the environment. The paper pays special attention to the work of Ahn Byung-Mu, a founding scholar of Minjung theology, shedding light on the connection between his concept of gong, literally meaning “publicness”, and ecology, the characteristics of his ecological thoughts and their relevance to his view of god, and his views on bapsanggongdongche, literally meaning “the table community”.