Considering that there is little research related to the impact of non-Christian students in Christian institutions, this study was designed to present insiders' perceptions of the Brazilian education system instead of the usual perspective external. Therefore, Adventist schools in northern Brazil were chosen as subjects due to their high number of non-Adventist students enrolled there. The purpose of this basic qualitative study is to investigate the characteristics of these schools, particularly from the perception of denominational and educational leaders. on the large number of non-believers present there. Of course, the data collection methods used in this study were semi-structured interviews, focus group interviews and statistical documents from the funding institution. The research questions arising from the above objective were as follows:1. What are the reasons for enrolling non-Adventist students in Adventist schools?2. What are the dangers and/or advantages for Adventist schools with a high number of students who do not profess the same values ​​and beliefs?3. What kind of actions can be taken to resolve or mitigate this trend? LITERATURE REVIEW The expansion of the number of enrollees from other denominations or religious beliefs is a phenomenon perceived by religious schools. Although the debate between the evangelistic and protective social functions of coat of arms schools persists in some academic circles, in many places around the world economic, legal and cultural factors have an impact. Tevni, Grajales, and Leon (2010) conducted a study in Adventist schools with students and parents of different religious beliefs in Chile. They found that both Adventist and evangelical parents contributed to ratings of educational emphasis..... . middle of paper ......or make distinctions in admitting students based on race, sex, nationality, religion, or ethnic origin, students from different backgrounds were enrolled in Adventist schools. Based on the statistical report of the Department of Education of the Union of Northern Brazil, the schools of the Lower Amazon Conference presented an increase in the number of students in all decades, except in the 1990s and 2000s, where 1,953 were lost students at the elementary level. This occurred due to the economic crisis from 1996 to 2003 which led to the closure of several small schools (Azevedo, 2005). In 2010, 6,715 students from kindergarten to high school were enrolled in eight elementary and two secondary schools where 77% of the students belonged to other faiths and ideologies. Secondary classes from the recently inaugurated Amazon Adventist College, located in Benevides, Pará, were included for this study..