This article proceeds from the assumption that the way a preacher conceptualizes a Christian’s identity in Christ shapes how he brings moral exhortation to the congregation. The concept of definitive sancti- fication—first coined by John Murray and developed by Richard Gaffin and others—identifies the believer as, in some sense, holy in Christ. This is not the holiness of imputed righteousness but a renovative change. Moreover, having been made holy, believers must act according to the logic of their identity in Christ. Three implications for preaching emerge from definitive sanctification: (1) preaching Christ and moral commands must be kept together, (2) the biblical indicative and imperative must inform each other, and (3) preaching must be eschatologically oriented.