In this sermon, the preacher tells the story of John Griffith, a man who sacrificed his son for a train. John was working as a bridge operator when he saw his son fall into the gears that operated the bridge. With a train approaching, John had to make a difficult decision. The preacher uses this story to illustrate the sacrifice of Jesus and the need for individuals to let go of their sins and follow God's path. He emphasizes the importance of recognizing and confessing one's sins in order to receive God's forgiveness and find true rest.