Johannes Quenstedt’s De Officio Christi is an antidote to errors about atonement in Lutheran circles. Lutheran Orthodoxy teaches that an indispensable part of atonement is vicarious satisfaction. Adversaries deny vicarious satisfaction. Their errors existed already in Quenstedt’s time. While teaching the orthodox truth, Quenstedt thoroughly refutes the adversaries from Scripture. Robert D. Preus says, “Quenstedt was the Thomas Aquinas, so to speak, of Lutheran Orthodoxy, the last great representative. … [H]e was fair and meticulous in his work and drew from the best which his precursors had to offer. … Quenstedt’s systematic section on the Atonement actually presents nothing but exegesis of…