Bishop Keenan has invited Reverend James Gibson of Paisley Abbey, to preach at the 11am Mass on Sunday 25th January in St Mirin’s Cathedral. To commemorate Christian Unity Week (18-25th January), Bishop John Keenan has invited Reverend James Gibson, interim moderator and minister of Paisley Abbey, to preach at the 11am Mass on Sunday 25th January in St Mirin’s Cathedral.