What was a significant outcome of the Council of Constantinople?

The Council of Constantinople in 381 AD was a pivotal moment in early Christian history, primarily because it reaffirmed and expanded upon the Nicene Creed, which had originally been established at the First Council of Nicaea in 325 AD. This council was convened to address various theological disputes that followed the Nicene Creed’s establishment, particularly regarding the nature of the Holy Spirit and the ongoing discussion surrounding Arianism.

The affirmation of the Nicene Creed with additional clauses was significant because it clarified and expanded the church’s official teaching on the Trinity, particularly emphasizing the divinity of the Holy Spirit. This reinforcement of key theological concepts served to unify the church against heretical teachings and solidified institutional orthodoxy.

The other options reflect important aspects of church history but do not accurately capture the primary focus of the Council of Constantinople. While the condemnation of Arianism had been a critical issue (and was affirmed earlier), and the division between the Eastern and Western Churches was a later development, the primary work of the council centered around the enhancement of the Nicene Creed itself, thus shaping Christian doctrine for centuries to come.