I was paging through my great-grandmother’s Bible when a treasure fell into my lap. On a small scrap of paper, in a young child’s handwriting, were the words, “Blessed are the poor in spirit: for theirs is the kingdom of heaven. Blessed are they that mourn: for they shall be comforted” (Matthew 5:3–4 kjv). Scribbled beside those verses in wobbly cursive was my mother’s signature...