The Gospel of Luke (22:49-51) describes Jesus healing the ear of the servant of a high priest during the Arrest of Jesus after one of the followers of Jesus had cut it off:
When Jesus' followers saw what was going to happen, they said, "Lord, should we strike with our swords?" And one of them struck the servant of the high priest, cutting off his right ear. But Jesus answered, "No more of this!" And he touched the man's ear and healed him.