"Through theological dialogue and with the help of God, we will gain a better understanding of the mystery that unites us." ...

This raucous meeting, which took place exactly 1700 years ago, was one of the most important in Christian history.

The Nicene Creed, recited every Sunday in Catholic churches around the world, is one of the oldest credal formulae (or ...

Addressing a gathering of Christian leaders at a landmark conference marking the 1,700th anniversary of the First Council of ...

The 381 Council of Constantinople solidified Trinitarian doctrine, affirmed the Holy Spirit’s divinity, and reshaped the ...

The first ecumenical council, known as the Council of Nicaea, is still accepted as authoritative by the Catholic Church, the ...

To celebrate the 1,700th anniversary of the Council of Nicaea is, first and foremost, to celebrate Jesus Christ, the eternal ...

Christian leaders stress that the council and its anniversary still have relevance in the modern day, despite theological ...

COMMENTARY: The solemn sign of reverence and humility links Catholics with their Eastern Orthodox brethren by tapping into ...

Pope Leo XIV meets with participants in the Symposium “Nicaea and the Church of the Third Millennium: Towards ...

By Cindy Wooden, Catholic News Service The Council of Nicaea 1,700 years ago recognized that Christian unity had to be based ...

Cardinal Timothy M. Dolan of New York urged Empire State lawmakers to reject legislation that would legalize ...