St Paul, after whom the school was named, wrote a letter to his dear friends in the church at Philippi. In chapter 2 of this letter, he says:
The Cross of Nails quickly became a sign of hope, friendship and reconciliation. Over subsequent years hundreds of crosses of nails have been gifted to churches, charities and organisations committed to peace and reconciliation. In 1976 recipients of the Cross of Nails formed an ecumenical ‘Community of the Cross of Nails’.
The Community of the Cross of Nails has three residing principles; healing the wounds of history, learning to live with difference and celebrate diversity, and building a culture of peace.
https://www.coventrycathedral.org.uk/reconciliation/icon-schools