The role of Islamic intellectuals is not confined to elaborating on the religious ideology of Islam. Equally important is their role in setting this religious ideology against other ideologies, sharpening and clarifying their differences, and thereby developing and intensifying one’s commitment to Islam as a distinct, divinely based ideology. Islam, as both a religion and an ideology, simultaneously mobilizes and transforms, legitimizes and preserves. It can be an instrument of power, a source and a guarantee of its legitimacy, as well as a tool to be used in the political struggle among social classes. Islam can also present a challenge to authority whenever the religious movement questions the existing social order during times of crisis and raises a rival power, as the current situation in Sudan vividly demonstrates. Throughout his political career, Hassan al-Turabi has resorted to religious symbolism in his public discourse and/or Islamic rhetoric, which could often be inflammatory and heavily reliant upon the Qur’an. This is, in fact, the embodiment of the Islamic quest for an ideal alternative. Our paper focuses on this charismatic and pragmatic religio-political leader of Sudan and the key concepts of his religious discourse: faith (īmān), renewal (tajdīd), and ijtihād(rational, independent, and legal reasoning).