By Fr. Panagiotis Kapodistrias
The Apostolic Encyclical In unitate fidei, dated 23 November 2025, was issued on the occasion of the 1700th anniversary of the First Ecumenical Council of Nicaea (325 AD). It is a theologically rich, historically grounded, and ecclesiologically oriented document. Pope Leo XIV offers more than a commemorative reflection; he presents a proposal centered on the renewal of faith in the Holy Trinity as a wellspring of life for the Church and for the modern believer.















































