On November 27, 1939, three treasure hunters accompanied by film crews dug through the asphalt outside of the Hollywood Bowl amphitheater in Southern California. They were looking for the Cahuenga Pass treasure, consisting of gold, diamonds, and pearls rumored to have been buried there seventy-five years earlier.

They never found it. After twenty-four days of digging, they struck a boulder and stopped. All they accomplished was a nine-foot-wide, forty-two-foot-deep hole in the ground. They walked away dejected.

To err is human—we all fail sometimes. God’s Word tells us that young Mark walked away from Paul and Barnabas on a missionary trip “and…