(三班僕人). A Christian new religious movement founded in the late 1980s in Henan by Xu Wenku (徐文庫, 1946–2006), included in the list of the xie jiao in 1999, and reduced to a handful of followers after the founder’s capture and execution. It acquired a reputation for physically assaulting other Christian groups, and Xu was executed for having ordered the assassination of ex-members of his movement who had converted to The Church of Almighty God, although his followers insisted he was innocent. In 2018, the CCP launched a campaign in the province of Yunnan, and arrested dozens of alleged members of the Three Grades of Servants. Scholars and China Aid reacted with skepticism, suspecting the CCP was falsely accusing Christians of the house churches to be members of the Three Grades of Servants.