Identifying traces of intolerance will make it easier to see the potential for conflict in the midst of this diverse society. That diversity and difference are a necessity which if maintained and cared for and managed productively will give birth to great potential in building the nation. This study uses a qualitative research method with a literature approach and a statute approach. The results of the study state that religious and ethnic conflicts cannot be separated from other factors. Poverty factors, social inequality, scarcity of natural resources, and economic deficiencies are among the factors that have accompanied the occurrence of horizontal conflicts so far. The role of the state is decisive in managing diversity and potential conflicts. There needs to be a unity of understanding in the life of diversity, and a statement that the common enemy is not difference or diversity, but the common enemy is intolerance. Therefore, a good arrangement is needed in fostering harmony between religious communities. Not by issuing regional regulations based on religion. In fact, the religion-based regional regulation will give birth to an attitude of intolerance towards non-religious groups.