Lisa felt no sympathy for those who cheated on their husband or wife . . . until after she found herself deeply unsatisfied with her marriage and struggling to resist a dangerous attraction. That painful experience helped develop in her a new compassion for others and greater understanding of Jesus’s words: “Let any one of you who is without sin be the first to throw a stone” (John 8:7).

Jesus was teaching in the temple courts when He made that powerful statement. A group of teachers of the law and Pharisees had just dragged a woman caught in adultery before Him…