Why did Peter cut off the ear of Malchus, one of the people trying to arrest Jesus?

Why did Peter cut off the ear of Malchus, one of the people trying to arrest Jesus? Why did Jesus then heal Malchus’s ear?

Malchus and me – Louder For Malchus

Malchus, the Slave Whose Ear Was Cut Off

Miracles of Mercy

Bloody Ears. Christians hurt people. Jesus doesn't…, by Nik White

What was the significance of Jesus healing the soldier's ear that

The Malchus Incident

When Empire Comes to Church, Part 2 - by Aaron Hann

Peter Denies Jesus

Arrest of Jesus - Wikipedia

Ear of malchus hi-res stock photography and images - Alamy

Healing the ear of a servant - Wikipedia

The arrest of Christ, the ear of Malchus cut off by St. Peter; the Agony in the Garden: Christ prays in Gethsemane (background) - PICRYL - Public Domain Media Search Engine Public