: the word nafs (soul) in the context of human speech shows a side in human that has good and bad potential. In the Qur'an, nafs is mentioned 295 times. The type of this research is librarry research, namely research through library data that is representative and relevant to the research object in the form of notes, transcripts, books, interpretation books, and Arabic language dictionaries etc. The collection of research data is obtained by collecting and analyzing data relating to the nafs and books relating to human personality data sources using primary data, secondary data, and tertiary data. The research method used in this research is the method of Maudhu'i's (thematic) of interpretation that is interpreting the Qur’an according to a...