The postmodern epistemological landscape, characterized by radical relativism, institutional skepticism, and the fragmentation of communal identity, has precipitated a profound crisis in Christian faith transmission. Traditional pedagogical models, overly reliant on didactic propositionalism or individualistic experientialism, prove increasingly inadequate in forming resilient, covenant-keeping disciples. This article turns to the Old Testament, specifically the pericope of Deuteronomy 31:9-13, as a forgotten but normative blueprint for reconstructing community-based faith education. Through a rigorous exegetical analysis of the Hebrew text—focusing on the triadic imperative to "hear" (shema), "learn" (lamad), and "fear" (yare)—this study argues that the septennial mandate of public Torah reading offers a robust theological counter-narrative to postmodern disintegration. The article reconstructs three structural pillars from the text: (1) the objective authority of the canonical corpus against relativism, (2) the inclusive, intergenerational assembly (qahal) against hyper-individualism, and (3) the cyclical liturgical rhythm against ephemeral consumerism. Conclusively, the paper proposes a practical ecclesial model that recovers the public reading of Scripture, re-engineers multi-generational spaces, and reintegrates the Christian calendar as a pedagogical tool for holistic faith formation. This reconstruction positions the Deuteronomic mandate not as an archaic relic, but as a prophetic, counter-cultural pedagogy for the contemporary church.