Why the Church dedicates a week of prayer for Christian unity

Dominican Father Nelson Medina discusses this year’s Week of Prayer for Christian Unity. | Credit: “EWTN Noticias”/Screenshot Jan 22, 2026 / 10:00 am (CNA). Friar Nelson Medina, a Colombian Dominican priest who holds a doctorate in fundamental theology, explained why it is important for the Catholic Church to celebrate and promote a Week of Prayer for Christian Unity (Jan. 18–25), which in 2026 has the theme “One Body, One Spirit.”“There are two reasons, one theological and one biblical, both extremely…