“… Judas Iscariot, who became a traitor.”
They all do it. All the four evangelists marked Judas as the future traitor of the Lord. Matthew 10.4. Mark 3.19. John 6.71; 12.4. His sin, never repented of, overshadows every reference to him.
Famous people such as sports figures are often known by big mistakes they make on the field or court. Their accomplishments are forgotten; their mistakes, remembered. Shall we do the same?