The reading of a passage from the Koran at Glasgow's St Mary's Cathedral during its Epiphany Mass earlier in the year caused an almighty row. The verses, which were read out by a local Muslim student, denied the divinity of Jesus and brought a wave of criticism and social media threats, which prompted a police investigation.

Most people agree that interfaith dialogue is a good thing, but interfaith crossovers within a worship setting risk causing great offense. Why is interfaith worship so controversial, particularly if the intention is to deepen friendships between local faith communities? How can churches, mosques and temples steer a safe course?

Robert Beckford discusses interfaith worship with Rev Anthea Ballam, an interfaith minister and priest; Rev Dr Gavin Ashenden, an Anglican priest and theologian; and Shayk Sohaib Sayeed, a Koranic scholar and a chaplain at the University of Edinburgh.

Producer: Dan Tierney

Series producer: Amanda Hancox.