This study engages the theological and literary traditions of the Old Testament to demonstrate the ongoing relevance of its prophetic and foundational texts for contemporary faith and society. Through exegetical precision and contextual theological analysis, it examines leadership, justice for the anāwim, reconciliation, divine mercy, critique of oppression, migration, Psalmic spirituality, and integral ecology. The work argues that prophetic imagination interrogates structures of injustice, sustains covenantal fidelity, and cultivates hope, compassion, and ecological responsibility. By bridging biblical scholarship with pressing ecclesial and social concerns, it reclaims Scripture as a dynamic source of conversion and transformative praxis.