Fourth Ecumenical Council

The Fourth Ecumenical Council, held in 451 AD in Chalcedon, was a major gathering of Christian bishops to clarify Christ’s nature. It addressed debates about whether Jesus was fully divine and fully human, leading to the Chalcedonian Definition. This statement affirmed that Jesus has two complete natures—divine and human—united in one person, without confusion or separation. The council helped unify the Christian faith and settled important theological disputes, influencing the doctrine and unity of the Church for centuries.