Pope Leo issues new Apostolic Letter ahead of trip to Turkey

Pope Leo Calls for Christian Unity Ahead of Nicaea Anniversary

Pope Leo has issued a new Apostolic Letter titled In unitate fidei, urging Christians to reclaim the unity first declared at the Council of Nicaea. This letter comes as preparations are underway to commemorate the council's 1700th anniversary at its historic location.

Emphasis on Recovering Christian Unity

In In unitate fidei, Pope Leo highlights the vital importance of unity among Christians, tracing this commitment back to the formative declarations made at Nicaea. The letter emphasizes a shared faith as the foundation for reconciliation and collective witness in today's world.

"We are called to recover the unity first affirmed at Nicaea," the Pope writes, reinforcing the significance of this milestone for all Christians.

Historical and Spiritual Significance

The Council of Nicaea, convened in 325 AD, was crucial in defining foundational Christian doctrine. Marking its 1700th anniversary at the ancient site, this commemorative event underlines the lasting spiritual and historical impact of Nicaea on the Church.

Pope Leo’s letter underscores the ongoing need for Christian unity rooted in shared faith and history, inviting the global Church to renew bonds established nearly two millennia ago.

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The Catholic Herald The Catholic Herald — 2025-11-24

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