A choir of 400 singers from various Christian communities gather in Beirut, Lebanon, to praise the Lord and pray for unity and peace Jan. 20-21, 2024. Credit: ACI Mena ...

By Matthew Santucci Rome Newsroom, Jan 18, 2024 / 06:00 am The Week of Prayer for Christian Unity will be celebrated by Catholics and other Christians worldwide from Jan. 18–25.

The concern for unity among Christians, present from the very origins of the Church, took on particular force in the early 20th century in what has come to be known as the Ecumenical Movement.