The present study, employing critical discourse analysis and a comparative-historical approach, examines the concepts of "chastity" and "veiling" (ḥijāb) in the foundational texts of the three Abrahamic religions. The aim is to offer a systematic, discourse-oriented reading that demonstrates how the overarching semantic frameworks in each religion have shaped particular rulings and transformed the body into an arena for the exercise of power and the construction of identity. Drawing on a composite theoretical framework (discourse analysis, Foucault's theory of power, and identity-construction theory), the findings show that despite a shared concern with regulating relations, the dominant discourses are fundamentally different: in Judaism, the discourse of "ritual purity and the preservation of ethnic cohesion" operating through a mechanism of symbolic control; in early Christianity, the discourse of "individual asceticism and eschatology" operating through a mechanism of internal self-surveillance; and in Islam, the discourse of "social ordering and conferring identity upon the ummah" operating through a mechanism of regulating public relations. Through textual analysis and the presentation of a comparative model, this article argues that understanding these rulings requires moving beyond atomistic readings and attending to the discursive system and the socio-theological aims of each religion. Finally, the study proposes avenues for interreligious dialogue and a contemporary rereading of these texts.