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

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

COMMENTARY: The solemn sign of reverence and humility links Catholics with their Eastern Orthodox brethren by tapping into spiritual medicine promoted by Pope Leo XIV.

The U.S.-born leader of the Holy Apostolic Catholic Assyrian Church of the East discusses the rapid decline of Christianity ...