In firmly rejecting [Rowan] Williams’s proposals, Welby has identified the problems with integrating sharia law. But he’s also done more than that, by giving an insight into the vital role the Church of England can play in community cohesion. Unlike criticism from politicians or the press, Welby can speak to Muslim communities – who often feel excluded, misunderstood and hated – from a position of sympathy not antagonism. As a fellow person of faith, he has a voice in these knotty questions of law, God and ethics that no government minister or newspaper editorial could offer. When he calmly but clearly explains why sharia cannot be incorporated into British law he has a chance of actually being heard by British Muslims. He and his fellow Anglicans, with their long track record of standing up for minority faith groups, can and must act as critical friends to other believers, challenging and protecting in equal measure. In doing so they will build greater cross-cultural harmony than any Home Office strategy ever could.