This article delves into the intricate dynamics of pastoral practices led by the Assembly of God Church in Atauro (East Timor), with regards to how it challenges the perpetuation of realms such as origin narratives, specific ritual knowledge, and the various aspects of local heritage. Drawing on ethnographic fieldwork conducted in Usubemassu/Beloi in 2019 and 2022, the study also explores the process through which local institutions are gradually being perceived as products of Christianity. The rejection of the indigenous category of ʻlulikʼ and efforts to supplant local toponymy by replacing it with a Christian-centric counterpart are all noteworthy instances of a transformative process. All of these aspects highlight the complexities inherent in the coexistence between Protestant Christianity and indigenous knowledge in the region.