This article critically examines some of the theological and Neo-Orthodox readings of Foucault. An exploration of some key texts reveals limitations in, e.g., Milbank’s account, and is developed further through an examination of Sharon Welch’s discussion of feminist liberation theology. A deeper engagement with Foucault’s work emerges, clarifying issues of power, disclosure, truth and ‘agonism’. The paper proposes that Foucault’s work is not an expression of ‘nihilism’ but rather is important for the self-critique and integrity of theology.