Pope Leo XIV marks Nicaea anniversary, urges Christians to overcome divisions – Catholic News Agency

By Elias Turk
Iznik, Turkey, Nov 28, 2025 / 08:05 am
Pope Leo XIV commemorated the 1700th anniversary of the First Council of Nicaea on Friday in the Turkish city historically known as the birthplace of the Nicene Creed, calling Christians to overcome “the scandal of divisions” and to renew their commitment to unity.
The pope spoke during an ecumenical prayer service held at the archaeological site of the ancient Basilica of Saint Neophytos on the shore of Lake Iznik, southeast of Istanbul. The gathering marked one of the most symbolic moments of his apostolic visit to Turkey, which has focused heavily on ecumenical and interreligious outreach.
“We are all invited to overcome the scandal of divisions,” he said, urging Christians to nurture “the desire for unity for which the Lord Jesus prayed and gave his life.”
Pope Leo and Ecumenical Patriarch Bartholomew I, considered first among equals among Eastern Orthodox bishops, were welcomed by two senior Orthodox bishops before proceeding to a platform beside the submerged ruins of the basilica. The two leaders stood before icons of Christ and of the council and lit candles together.
Iznik, formerly Nicaea, is located about 130 kilometers southeast of Istanbul. The remains of an early Christian basilica dedicated to Saint Neophytos, a young martyr killed in 303 during the persecutions of Diocletian, were first identified in 2014 after aerial photographs revealed the outline of a submerged church. The basilica collapsed during an earthquake in 740, and its ruins are now visible from the lakeshore.
In his homily, Leo said the anniversary was “a precious opportunity to ask ourselves who Jesus Christ is in the lives of men and women today, and who he is for each one of us personally.” He cautioned against reducing Christ to “a kind of charismatic leader or superman,” recalling Arius’ denial of Christ’s divinity and the council’s defense of the full humanity and full divinity of Jesus.
“If God did not become man, how can mortal creatures participate in his immortal life?” the pope asked, emphasizing what was at stake in the fourth-century debate.
Leo said the Nicene confession of faith remains a foundation for unity among Christians worldwide. Quoting the creed, he underlined the proclamation of Christ as “consubstantial with the Father,” describing it as “a profound bond already uniting all Christians.” Citing St. Augustine, he added: “Although we Christians are many, in the one Christ we are one.”
A reconciled Christianity, he continued, can “bear credible witness to the Gospel” and offer “a proclamation of hope for all.”
The pope also extended his appeal for fraternity beyond the Christian world, insisting that authentic recognition of God as Father requires honoring all people as brothers and sisters. He warned against using religion “to justify war, violence, or any form of fundamentalism or fanaticism,” and called instead for “fraternal encounter, dialogue, and cooperation.”
Pope Leo’s schedule in Turkey includes a series of ecumenical events, among them the signing of a joint declaration with Patriarch Bartholomew I on Nov. 29 at the Patriarchal Palace. His trip also carries an interreligious dimension. Earlier on Friday he met the Chief Rabbi of Turkey, discussing the visit as a sign of peace and support for all religious communities. On Saturday, Nov. 29, he will visit the Sultan Ahmed Mosque.
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St. Athanasius, celebrated on May 2, was a fourth-century bishop who is known as “the father of orthodoxy” for his dedication to the doctrine of Christ’s divinity.
An Italian television station released on Monday the first in an eight part series of interviews designed to highlight reflections from Pope Francis on the Nicene Creed.
I believe in one God, the Father almighty, maker of heaven and earth, of all things visible and invisible. And in one Lord Jesus Christ, the Only Begotten Son of God, born of the Father before all ages. God from God, Light from Light, true God from true God, begotten, not made, consubstantial with the Father; through him all things were made. For us men and for our salvation he came down from heaven, and by the Holy Spirit was incarnate of the Virgin Mary, and became man. For our sake he was crucified under Pontius Pilate, he suffered death and was buried, and rose again on the third day in accordance with the Scriptures. He ascended into heaven and is seated at the right hand of the Father. He will come again in glory to judge the living and the dead and his kingdom will have no end. And in the Holy Spirit, the Lord, the giver of life, who proceeds from the Father and the Son, who with the Father and the Son is adored and glorified, who has spoken through the prophets. And one, holy, catholic and apostolic Church. I confess one baptism for the forgiveness of sins and I look forward to the resurrection of the dead and the life of the world to come. Amen.
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