Create in me a clean heart, O God, and put a new and right spirit within me. Do not cast me away from your presence, and do not take your holy spirit from me. Restore to me the joy of your salvation, and sustain in me a willing spirit.—Psalm 51:10–12 Most of us have wished at one time or another that life had a “do-over” button (or an “unsend” button for e-mail). This was true even of King David, the second king of Israel, whom God called “a man after my heart” (Acts 13:22).

Mother Teresa said, “Stay where you are. Find your own Calcutta. Find the sick, the suffering, and the lonely, right where you are — in your own homes and in your own families, in homes and in your workplaces and in your schools. You can find Calcutta all over the world, if you have eyes to see. Everywhere, wherever you go, you find people who are unwanted, unloved, uncared for, just rejected by society — completely forgotten, completely left alone.”