To illustrate the principle of substitution, George Sweeting, Chancellor of Moody Bible Institute, told of a series of tornadoes that caused extensive damage in eastern Ohio and western Pennsylvania. Nearly 100 lives were lost. Prior to the storm, a man named David Kostka was umpiring a Little League baseball game in Wheatland, Pennsylvania. When he saw the black funnel heading toward the field, he rushed into the stands and grabbed his niece. He pushed her into a nearby ditch and covered her with his body. Then the tornado struck. When the youngster looked up, her uncle was gone. He had given his life in the deadly storm to save her.