It is a reflection on the meaning of the Council of Nicaea for today’s Church, the one shared by Nicola Brady, General Secretary of the ecumenical agency “Churches Together in Britain and Ireland”, for the Week of Prayer for Christian Unity that is celebfrated from 18^th to 25^th January. In her message, posted on the website of the Bishops’ Conference of England and Wales, Brady explains that “the 1700th anniversary of the Council of Nicaea this year has been embraced with a hopeful enthusiasm in the global Church and in ecumenical bodies, inspiring a wide range of events and dialogues. It is valued as a significant moment of shared history across the different Christian traditions”. According to Brady, some Christian Churches have remained closer to the Church envisaged at Nicaea during the Council held near Constantinople in the distant 325 AD and keep saying the apostolic Creed of Nicaea, while others have chosen to adopt different models that no longer involve saying that Creed and decided to place greater emphasis on other forms of expression of shared Christian faith. “The Council of Nicaea presents an opportunity for ecumenical dialogue”, Brady writes in her message, “an opportunity to deepen understanding and relationships, strengthening our unity in diversity.” Her message ends with a look at today’s ecumenical dialogue. “Our polarised and fracturing world is in need of a new vision for peace, centred on the recognition of our inter-connectedness and shared humanity”. “As we gather to mark this anniversary, we have an opportunity to ask the hard questions about what may be getting in the way of our shared identity as Christians and our collective witness to the world”.