How can we remain silent while Christians are being persecuted?

Father Immanuel Dabaghian, one of Baghdad’s last surviving priests, is expecting a quiet Christmas. To join him in the Church of the Virgin Mary means two hours of security checks and a body search at the door, and even then there’s no guarantee of survival. Islamist gunmen massacred 58 people in a nearby church last year, and fresh graffiti warns remaining worshippers that they could be next.

The Americans have gone now, and Iraq’s Christian communities – some of the world’s oldest – are undergoing an exodus on a biblical scale. Of the country’s 1.4 million Christians, about two thirds have now fled.

The idea of Christianity as a kind of contagion that is foreign to the Arab world is bizarre: it is, of course, a Middle Eastern religion successfully exported to the pagan West. Those feet, in ancient times, came nowhere near England’s mountains green. The Nativity is a Middle Eastern story about a child born to a Jewish mother, whose first visitors were three wise Iranians and who was then swept off to Egypt to escape Roman persecution.