At some point in their lives, one of every three Americans will leave Christianity, according to a 2011 study in the Journal of Religion and Society. Called “leavers,” “deconverts,” or “ex-Christians,” they are targets of fresh concern among church denominations watching their numbers shrink. Pollsters and bloggers tick off reasons why so many are leaving, such as intellectual hurdles to belief, immoral or intolerant church leaders, and profound suffering. But the leavers phenomenon is nothing new. It goes back at least to the parable of the Prodigal Son, told by Jesus and recorded in Luke 15:11”“32.
What about the people whom the prodigals leave behind? The ones who love the leavers? The ones left to hold down the forts of remaining families and faith communities? Few theological and practical resources exist for the two out of every three Christians who remain with the Father while they watch their “younger brother” leave.
The biblical parable centers on the relationship between a father and his two sons. But the essence of the story remains the same, whether the prodigal is a child, sibling, spouse, parent, or friend. This is why P. C. Ennis Jr. argues in the Journal for Preachers that “it is crucial that periodically we preach on the Prodigal Son. . . . Like the Easter story and the Christmas story, it bears repeating, for the story of the Prodigal Son is the gospel in capsule.”