It always amazes me the way peace—powerful, unexplainable peace (Philippians 4:7)—can somehow fill our hearts even in our deepest grief. I experienced this most recently at my father’s memorial service. As a long line of sympathetic acquaintances passed by offering their condolences, I was relieved to see a good high school friend. Without a word, he simply wrapped me in a long bear hug. His quiet understanding flooded me with the first feelings of peace within grief that difficult day, a powerful reminder that I wasn’t as alone as I felt.

As David describes in Psalm 16, the kind of peace…