Abstract
A key aspect of Oliver O’Donovan's approach to ethics and theology is the notion of Scripture's ‘authorisation’ of concepts. Authorisation is an organic process of concepts and Scripture illuminating each other, where Scripture has ultimate authority over concepts. That is, while concepts from various disciplines can illuminate biblical texts, the biblical texts in return shape those concepts. Here concepts are formed organically guided by the Spirit. Such a notion of authorisation lies dormant in O’Donovan's earlier political theology, The Desire of the Nations, and comes to fuller expression in his relatively recent Ethics as Theology.