Mission in Unity

This article introduces the multidimensional work of Oliver R. Avison (1860–1959) from various perspectives of the United Nations sustainable development goals. The aim is to elaborate his mission regarding medical ministry, education, and evangelism. This article comprises two major parts. The first is a general introduction to the background of his work in Korea in terms of society and medical mission. The second is an examination of his major contributions in seeking justice, peace, and wellbeing for people and establishing institutions for both medical service and higher education for young Koreans under Japanese colonialism. This article is descriptive and approaches the topic of Avison’s work of his beginning period chronologically. It is also analytical and offers an evaluation of his work in its historical context. Overall, he aimed to accomplish mission in unity. His endeavour could be commemorated as a role model even in the 21st century as a pioneer attempt to pursue sustainability through mutual respect instead of through paternalistic charity work.