The head of the Scottish Episcopal Church says the Church is "deeply distressed" at the offence caused by the reading of a passage from the Koran in a Glasgow cathedral.
The comments of the Church Primus, the Most Rev David Chillingworth, follow criticism that Islamic verses were read during an Epiphany service.
In his blog, he also condemned the abuse received by St Mary's Cathedral.
Police are investigating offensive online messages aimed at the church.
The primus, who is also Bishop of St Andrews, Dunkeld and Dunblane, said the church wanted to bring together people involved in interfaith relations.