"When she came on people laughed, but as she opened her mouth the mood altered. Those watching tapped into something we don't understand," The Sun quoted her as saying.
She added: "It reminded me bizarrely of how the gospels speak of Jesus. They claimed he had an authority which was utterly convincing. But at the same time he's identified with the broken figure from the book of Isaiah, one with no beauty - despised of men."
Rev Tilby, from Cambridge, even dedicated a BBC Radio 4 Thought for the Day to the singer.