Luke 22:50

Then a certain one of them struck the head priest's slave and sheared off his right ear. [Note: It was Peter who struck this man, whose name was Malchus. See John 18:10].

Matthew 26:51-54

Just then, one of those who were with Jesus [i.e., Peter. See John 18:10], reached out with his sword and struck the head priest's servant [with it], shearing off his ear.

Mark 14:47

But a certain disciple that was standing nearby [i.e., Peter. See John 18:10] drew his sword and struck the head priest's servant [i.e., Malchus. See John 18:10], shearing off his ear.

John 18:10-11

So, Simon Peter, who had a sword, drew it out and struck the head priest's slave, cutting off his right ear. Now the slave's name was Malchus.

Romans 12:19

Do not take revenge on someone who has wronged you, but leave it up to God's wrath [to take care of it], for it is written [Deut. 22:35], "The Lord says, I will pay people back [for doing wrong] because taking revenge belongs to me."

2 Corinthians 10:4

For the weapons of our warfare are not like the world's [i.e., which rely on human ingenuity and unspiritual principles], but they are empowered by God to overthrow [Satanic] fortifications.

Treasury of Scripture Knowledge

Summary

And one of them smote the servant of the high priest, and cut off his right ear.

Bible References

General references

Matthew 26:51
Just then, one of those who were with Jesus [i.e., Peter. See John 18:10], reached out with his sword and struck the head priest's servant [with it], shearing off his ear.
Mark 14:47
But a certain disciple that was standing nearby [i.e., Peter. See John 18:10] drew his sword and struck the head priest's servant [i.e., Malchus. See John 18:10], shearing off his ear.
John 18:10
So, Simon Peter, who had a sword, drew it out and struck the head priest's slave, cutting off his right ear. Now the slave's name was Malchus.
Romans 12:19
Do not take revenge on someone who has wronged you, but leave it up to God's wrath [to take care of it], for it is written [Deut. 22:35], "The Lord says, I will pay people back [for doing wrong] because taking revenge belongs to me."
2 Corinthians 10:4
For the weapons of our warfare are not like the world's [i.e., which rely on human ingenuity and unspiritual principles], but they are empowered by God to overthrow [Satanic] fortifications.