'Disciple Whom Jesus Loved' in the Bible

Upon this the disciple whom Jesus loved said to Peter: "It is the Master!" When Simon Peter heard that it was the Master, he fastened his coat round him (for he had taken it off), and threw himself into the Sea.

Peter turned round, and saw the disciple whom Jesus loved following--the one who at the supper leant back on the Master's shoulder, and asked him who it was that would betray him.