John Calvin on Peter’s attack on the servant of the High Priest:
“It was exceedingly thoughtless in Peter to try and prove his faith by the sword, while he could not do so by his tongue. When he is called to make a confession, he denies; now unbidden by his Master he raises a riot.”
I think most Christians struggle with this since it is far easier to hack at someone than to bear witness peacefully. I usually do not even hit an ear.