Most Baptists today have adapted rather well to the modern world--that is, they worship as they live, in ways that don't much deviate from the general cultural milieu. It was not always so. In the past, the ways of Baptists were eccentric, their children were sometimes embarrassed by them, and their grandchildren were astonished by many features of their communal Christian life and practice, some of which now seem hilarious. Yet David Lyle Jeffrey...