Many sacred beliefs of our Catholic faith can be traced to the 21 ecumenical councils held since the fourth century.

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

The bishop invokes the outpouring of the Spirit in these words: All-powerful God, Father of our Lord Jesus ... Church, to her apostolic origins, and to her mission of bearing witness to Christ.

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 ...

YEREVAN—Hundreds of Armenians gathered at Zvartnots International Airport on June 10 to welcome Catholicos of All Armenians ...

Christian unity will not be “primarily the fruit of our own efforts, nor will it be realized through any preconceived model ...

Pope Leo XIV greets Orthodox Metropolitan Emmanuel of Chalcedon, a bishop of the Orthodox Ecumenical Patriarchate, during a ...

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

Many people have looked at Pope Leo XIV's discrete decisions as tea leaves about his pontificate. It is smarter to highlight ...

“Miracles happen here.” That’s the slogan of one megachurch in southwest Miami-Dade County at the forefront of the ...

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