The Historical Roots of the Nicene Creed The Nicene Creed stands as a foundation of our Christian faith, bringing believers together around a shared understanding of what we hold most dear. Its story begins in the early 4th century, when the Roman Emperor Constantine gathered church leaders for the First Council of Nicaea in 325 AD. This remarkable council was called to help Christians unite by resolving theological disagreements and strengthening the bonds of the church.