The Second Council of Constantinople, convened in 553 AD, was the fifth ecumenical council of the Christian Church, primarily aimed at resolving the controversies surrounding the teachings of Origen and the Three Chapters, which were writings by Theodore of Mopsuestia, Theodoret of Cyrus, and Ibas of Edessa. It sought to affirm the decisions of the Council of Chalcedon and further clarify the nature of Christ, emphasizing the unity of his divine and human natures against various heretical interpretations.