Then Simon Peter having a sword drew it, and struck the high priest's servant, and cut off his right ear. The servant's name was Malchus.
All Commentaries on John 18:10 Go To John 18
Theophilus of Antioch
AD 184
Or, he had got one for sacrificing the lamb, and carried it away with him from the Supper.
Or, the cutting off of the high priest’s servant’s right ear is a type of the people’s deafness, of which the chief priests partook most strongly: the restoration of the ear, of ultimate reenlightenment of the understanding of the Jews, at the coming of Elias.
In that He calls it a cup, He shows how pleasing and acceptable death for the salvation of men was to Him.