Oft-referenced and frequently set to music, Psalm 137 - which begins "By the rivers of Babylon, there we sat down, yea, we wept, when we remembered Zion" - has become something of a cultural touchstone for music and Christianity across the Atlantic world. It has been a top single more than once in the 20th century, from Don McLean's haunting Anglo-American folk cover to Boney M's West Indian disco mix. In Song of Exile, David Stowe uses a wide-ranging,...