Saul, who had never been under such a blazing light or heard such a magnificent voice, answered meekly and with respect, “Who are You, Lord?” Some believe that marked the moment of his conversion. But he used the Greek word kurios, which means “lord” or “master.” It was a title of respect. “Sir” would be our term today. “Who are You, Sir?” Saul was not only blind, he was confused. The authoritative voice was one he had not heard before.