Church councils are gatherings of church leaders and representatives from various denominations or regions. They are convened to discuss important issues, make decisions on doctrine, and address challenges facing the church community. These councils can vary in size and scope, ranging from local meetings to large international assemblies. One of the most notable examples is the Council of Nicaea, held in 325 AD, which aimed to address disputes about Christian beliefs and establish a unified doctrine. Church councils play a crucial role in shaping the direction and unity of the Christian Church throughout history.