There’s a certain mood that comes over me at times. I can be found staring into space, a grim look in my eyes. When dinner comes, I am quiet at the table, distracted and melancholy. Emily, my wife, usually senses the shift and knows the cause. “Are you reading another book on climate change,” she asks?

We have a couple of things to get settled right up front. First, at one time I took a vow never to preach about Mother’s Day; it is not on the church calendar, and the sermons about the holiday that I heard in the country church of my youth were too saccharine for anyone’s spiritual –and perhaps physical—health. And they did not have too much to do with classical Christianity.