He was one of the high priest's servants who came to arrest Jesus. When Peter drew his sword and swung it, Malchus's ear was injured, but Jesus healed him.
John 18:10Then Simon Peter, having a sword, drew it and struck the high priest's servant, cutting off his right ear. The servant's name was Malchus.John 18:11Jesus said to Peter, "Put your sword into its sheath. Shall I not drink the cup that the Father has given me?"