Although Daesh has lost its effect physically, its influence on manpower remains a matter of curiosity. The aim of this article is to define ‘Religiously Motivated Terror Discourse’ on Daesh terror organization case. Daesh’s online magazines, Dabıq and Rumiyah, are analyzed by content, thematic and discourse analysis. The analysis displays that Daesh constructs its discourse on the main themes (manhaj, jihad, tawhid, jama’ah, hijrah, imamah, ummah, khalifah) which prefigure and integrate each other. Themes are linked to form a cause and consequence cycle in the construction of this discourse. Fictitious description of events, ideological separation in narratives, binary opposing themes in propositions, absence of gray zone in narratives, divine narratives, brutal imagery in visuals, discourse on the vengeance of humiliation, the motivation of group members, and use of inner group jargon are the main characteristics of this discourse.