John 18:23
“And He says, If I have spoken evil, bear witness of the evil.”
That is, “If you can lay hold on My words, declare it; but if you can not, why do you strike Me?” Do you see that the judgment-hall is full of tumult, and trouble, and passion, and confusion? The high priest asked deceitfully and treacherously, Christ answered in a straightforward manner, and as was meet. What then was next to be done? Either to refute, or to accept what He said. This however is not done, but a servant buffets Him. So far was this from being a court of justice, and the proceedings those of a conspiracy, and a deed of tyranny. Then not having even so made any farther discovery, they send Him bound to Caiaphas.
Source: Homilies on the Gospel of John (New Advent)