The distinction between God's absolute power and ordained power was a hallmark of medieval theology, yet its role within Reformed theology has rarely been considered. Even more importantly, consideration of the distinction in Reformed theology by historians is often restricted to theology proper or the nature and necessity of the atonement with little regard for how the concept can inform the question of the extent of the atonement. This paper seeks to fill this lacuna by considering two influential Reformed theologians of the seventeenth century: John Davenant and John Owen. While considerable attention has been given to the distinctly Thomist influence on these two theologians in particular, this paper seeks to qualify these legitimate assessments with the following conclusion: Davenant and Owen both understand the two-powers distinction in a way that differs from Aquinas and reflects a shift in the concept in late medieval theology.