The Chinese Christian community occupies an essential position in the pluralistic religious landscape of modern Singapore, which is known as a multicultural and multiracial immigrant society. Despite being a minority compared with Buddhists and Taoists in Singapore, the historical formation and contemporary existence of the Chinese Christian community in Singapore not only embodies religious diversity, but also contributes significantly to Singapore’s social development. This paper zooms into the founding and evolution of the Jubilee Church to see how Chinese Christians contributed to the revolutionary cause, took part in the anti-opium movement, and advanced educational activities in Singapore. Particularly, by establishing the Singapore Reading Room, participating in the founding of the Anti-Opium Society and the Chinese Kindergarten, the Jubilee Church played an important role in Singapore’s history, contributing to the modernization of Singapore in terms of advancing ideas, improving social order, and promoting education. We aim to shed light on how Chinese Christians were engaged in social activities, taking up significant roles in the transformation of the Chinese diaspora in Singapore. More importantly, we argue that these varied social engagements significantly impacted the development of Christianity. Through a detailed historical case study on the Jubilee Church, this paper proposes that social functions and religious evangelization are mutually constitutive, thus complicating our understanding of the entangled relationship among Chinese diaspora, Christianity, and motherland China.