Though not at the heart of his article, I loved this anecdote that Justin relates:
Both of them [MER: Martin Luther and his wife Katie] took God seriously; and both knew how to correct the other when one of them was ignoring God and taking life too seriously. One day Luther was depressed and despairing. So Katie decided to put on a black dress for the day. Luther asked, "Are you going to a funeral?" "No," she responded, "but since you act as though God is dead, I wanted to join you in the mourning!" Exactly what Luther needed to hear.