Issued in October 1965, Nostra Aetate transformed the Catholic Church’s relations with other faiths, especially Judaism. It rejected the view that Jews had forfeited their status as the People of God by rejecting and killing Jesus, and instead affirmed Judaism’s foundational and theological place in Christianity, recognising and celebrating the Jewish identity of Jesus, his mother and his first disciples. Originally conceived as a response to antisemitism and the Shoah, the declaration was broadened to include Islam, Hinduism and Buddhism. For the first time in history the Church stated clearly that “she rejects nothing that is true and holy” in other religions and urged the faithful to regard their teachings and practices “with esteem and respect.”
A Journey of Hope reviews six decades of interreligious engagement and, like Nostra Aetate, gives particular attention to Christian–Jewish relations, affirming that God’s covenant with the Jewish people is irrevocable. It acknowledges the common biblical roots of Rabbinic Judaism and Christianity as “the first Christians effectively adopted the principles of Judaism as they existed at the time and adapted them to the new post-Paschal situation”. This conviction and shared history make Christian–Jewish dialogue and the shared fight against antisemitism essential, while the document warns that tensions arising from recent Middle East conflicts and differing interpretations must not destroy the trust built over sixty years. It quotes Pope Benedict who says that Christians should be grateful to Judaism for preserving faith in the one God, a sentiment that I have heard from Jews who are grateful that belief in the God of Abraham, Isaac and Jacob has become universal through Jesus – a good foundation for dialogue, surely.
The document also condemns an Islamophobia that fails to distinguish violent fundamentalism from the peaceful lives of Muslim citizens who contribute to the societies in which they live. Genuine discernment rejects both naïveté about extremism and suspicion directed at an entire faith.
The work of interreligious dialogue, the document suggests, has produced visible and quiet fruits. Religious leaders have formed enduring friendships, educational and social projects have crossed confessional boundaries, and communities have issued joint responses to war, humanitarian disasters and environmental crises. Equally important is the ordinary witness of priests, religious and laypeople living in multi-faith neighbourhoods, where peaceful coexistence and practical care for neighbours become a form of dialogue.
The document recognises the difficulties of interreligious dialogue which it suggests can be obstructed by memories of conflict, fear of doctrinal relativism, political manipulation of religious identity and violence committed in God’s name. It requires a clear identity and genuine, respectful openness to others which creates the conditions in which differences can be faced without contempt, coercion or indifference.
Perhaps one of the most visible and enduring effects of Nostra Aetate was the first World Day of Prayer for Peace hosted by Pope John Paul II in Assisi in October 1986. It was the first time that religious leaders had come together in such a way and became a pattern for future prayer events not just in Assisi but throughout the world. Pope Francis travelled to Assis in 2016 to celebrate the 30th anniversary of that moment and this year on 25–27 October there will be a gathering of 384 representatives of religions, cultures and institutions from 53 countries. The title, “Disarmed and Disarming Peace,” comes from Pope Leo’s insistence that peace is both a goal and a way of acting. On the final day, the Pope and Patriarch Bartholomew are due to offer meditations before Pope Leo delivers a message of peace outside the Basilica of Saint Francis.
Pope Leo, like his predecessors, has shown by word and deed his belief in and commitment to interreligious dialogue. On the actual anniversary of Nostra Aetate he encouraged Catholics “ to meet the followers of other religions not as outsiders but as travelling companions on the path of truth, to honour differences, affirming our common humanity and to discern in every sincere religious search a reflection of the one divine Mystery that embraces all creation”. This is indeed a fruit of interreligious dialogue and one that would be recognised by all those engaged in it I think. There is much to be grateful for but it still remains a minority sport. In spite of the call to provide the tools to participate in it, in spite of opportunities for dialogue through interfaith groups and initiatives such as Interfaith Week the majority of believers are either unaware of it, or uninterested in it, or think there are other aspects of their faith that are more important.
But the mind set needed for dialogue is surely the mind set needed for the future of our common home and living as one human family. Can we live, respect and honour those who are different? If not is there any hope for our future? Are we able to face together the enormous challenges that beset us all, can we see it as a social challenge as much as a religious one? A Journey of Hope tells us that the journey ahead demands more than declarations. It requires religious literacy, moral courage and habits of encounter; institutions that protect freedom of conscience; workplaces where technology remains accountable to human purposes; and communities willing to reject prejudice even when fear makes it attractive. In a world tempted by walls, believers and non-believers alike are called to become bridge-builders, artisans of peace and guardians of the human person. Hope becomes credible when it takes social form such as friendship across traditions, solidarity with the persecuted, care for the poor, resistance to antisemitism and Islamophobia.
The task is demanding, but its direction is clear.









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