Divine Simplicity engages recent critics and address one of their major concerns: that the doctrine of divine simplicity is not a biblical teaching. By analyzing the use of Scripture by key theologians from the early church to Karl Barth, Barrett finds that divine simplicity developed in order to respond to theological errors (e.g., Eunomianism) and to avoid misreading Scripture. The volume then explains how divine simplicity can be rearticulated by following a formal analogy from the doctrine of the Trinity in which the divine attributes are identical to the divine essence but are not identical to each other.