This study aims to analyze the role of adab in shaping speech and behavior and to explain strategies for developing civilized individuals from the perspectives of character education and Islamic education. The study employs a systematic literature review with content analysis of 15 selected sources published between 2015 and 2025. The findings indicate that: (1) adab serves as the foundation for developing polite, honest, and responsible speech through the internalization of moral and spiritual values; (2) adab shapes behavior through the habituation of ethical values integrated into everyday life; and (3) developing civilized individuals requires the integration of religious education, role modeling, habituation, and sustained support from family, school, and community environments. This study concludes that adab is a central concept in character education and Islamic education that needs to be strengthened through a holistic and contextual approach, particularly in addressing the challenges of contemporary digital communication.
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