significant. The Council of Chalcedon was an important event—and a critical turning point—in the history of Christianity both because it clarified orthodox Christian teaching and also because of the way that it accomplished that clarification. As it had at the councils of Nicea and Constantinople, the church at Chalcedon took up questions of ultimate importance concerning the person and work of Christ. In the broader sweep of church history, Chalcedon showed that it was possible, through judicious