Mistakes are effective teachers. Their consequences have a way of making lessons painfully clear. But those who learn from their mistakes are wise. John Mark was a good learner who just needed some time and encouragement. Mark was eager to do the right thing, but he had trouble staying with a task. In his Gospel, Mark mentions a young man (probably referring to himself) who fled in such fear during Jesus’ arrest that he left his clothes behind. This tendency to run showed up later when Paul and Barnabas took him as their assistant on their first missionary journey. At their second stop, Mark left them and returned to Jerusalem. It was a decision Paul did not easily accept. In preparing for their second journey two years later, Barnabas again suggested Mark as a traveling companion, but Paul flatly refused. As a result, the team was divided. Barnabas took Mark with him, and Paul chose Silas. Barnabas was patient with Mark, and the young man repaid his investment. Paul and Mark were later reunited, and the older apostle became a close friend of the young disciple. Mark was a valuable companion to three early Christian leaders: Barnabas, Paul, and Peter. The material in Mark’s Gospel seems to have come mostly from Peter. Mark’s role as an assistant allowed him to be an observer. He heard Peter’s accounts of the years with Jesus over and over, and he was one of the first to put Jesus’ life in writing. Barnabas played a key role in Mark’s life. He stood beside the young man despite his failure, giving him patient encouragement. Mark challenges us to learn from our mistakes and appreciate the patience of others. Is there a "Barnabas" in your life you need to thank for his or her encouragement to you?