Matthew Poole and continuators on John 18:23

23 Jesus answered him, If I have spoken evil, bear witness of the evil: but if well, why smitest thou me ?

Our Saviour could easily have revenged himself upon this Officer; but to teach us our duty, he onely gently reproves him; and lets him know, that he did not behave himself as one ought to do in the face of a Court of Justice, where he had both a liberty, and a present opportunity to have accused him, if he had spoken ill; and if he had spoken well, there was no reason for his striking him.