What significant role did St. Gregory of Nazianzus play at the Council of Nicaea?

St. Gregory of Nazianzus is known for his important contributions to Christian theology, particularly in the development of the Nicene Creed. Though he was not one of the main conveners of the First Council of Nicaea, his theological work was crucial in elaborating the nature of Christ and the doctrine of the Trinity, which were central issues addressed at the council.

The Nicene Creed, established at the Council of Nicaea in 325, articulated the belief in the consubstantiality of the Son with the Father, laying a foundational statement for Christian orthodoxy. St. Gregory's emphasis on the divinity of the Son and his involvement in theological debates helped shape the development of the creed and solidified its acceptance in the early Church.

His contributions during the subsequent councils, particularly regarding the nature of God and the Holy Spirit, further indicated his influence in solidifying the faith established at Nicaea, making his role in the development of the Nicene Creed particularly significant. This focus on the correct understanding of Christ's divinity and the unified nature of the Trinity echoes in the creed's formulation and acceptance by the broader Christian community.