The LORD will keep you from all harm he will watch over your life; the LORD will watch over your coming and going both now and forevermore. -- Psalm 121:7-8
The only way you can believe this verse is if you believe that God is in control of every event in your life. "He will keep you from ALL harm". Since pain, death and tragedy happen at some point in everyone's life, one must conclude that these painful things are ultimately not harmful to us, they are helpful in guiding us and shaping us into the image of Christ, however painful they may be in the short-term. What a wonderful God that we can rest our souls and our lives in. He is watching over his children like a good Father and He will keep us from ALL harm.