Give some stream of consciousness and then the answer. Malchus / mlks / is the servant of the Jewish High Priest Caiaphas who participated in the arrest of Jesus as written in the four gospels. According to the Bible, one of the disciples, Simon Peter, being armed with a sword, cut off the servant's ear in an attempt to prevent the arrest of Jesus.

Based on this passage, who cut the ear of the high priest's servant?
The relevant sentence in the passage is: According to the Bible, one of the disciples, Simon Peter, being armed with a sword, cut off the servant's ear in an attempt to prevent the arrest of Jesus.
Therefore, the answer is Simon Peter.