Runners continue to run towards the finish line as an explosion erupts at the finish line of the Boston Marathon

With a sudden shock—an explosive concussion—we were reminded, once again, that evil is in our midst.

The two bombs that killed three and injured 150 more at the Boston Marathon bespeaks of the fact that free societies cannot eliminate all evil acts and maintain freedom.

But the bombings also bespeak of another truth—a truth more mysterious and profound than that of evil—of overwhelming goodness.

As shocking as evil is, it is in the fact that it is shocking that proves the universal subtlety of goodness. It’s appropriate to focus attention on the bombs and bombers, and on the lives lost and altered, but if we’re not careful we’ll miss the heroic beauty of those who rushed in to give aid and comfort amid the chaos and carnage; we’ll miss the mystery of goodness.

Events like the Oklahoma City bombing, the Atlanta Olympic bombing, the 9/11 terrorist attacks, and the Boston Marathon bombing cause sorrow, outrage, and national unity.