Chalcedonian Definition

The Chalcedonian Definition, established at the Council of Chalcedon in 451 AD, is a key statement about the nature of Jesus Christ. It asserts that Jesus is both fully divine and fully human, possessing two natures—one divine and one human—that coexist without mixing or changing each other. This definition was important for clarifying Christian beliefs about Jesus’ identity, affirming that he is truly God and truly man, which is central to understanding salvation and the Christian faith. The definition helped unify various Christian communities by providing a clear doctrinal foundation.