A mother heard her 4-year-old son let out a scream, so she came running into the room. There she saw her two-year-old daughter pulling mightily on her brother’s hair. Mom gently released the little girl’s grip and comforted her son, “There, there. She didn’t mean it. She doesn’t know that hurts.”

Mom was barely out of the room when the little girl let out a loud scream. Rushing back in, she asked “What happened?”

“She knows now,” the boy replied.

“Do not take revenge, my dear friends, but leave room for God’s wrath, for it is written: ‘It is mine to avenge; I will repay,’ says the Lord.”—Romans 12:19.