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19The high priest then questioned Jesus about his disciples and his teaching. 20Jesus answered him, "I have spoken openly to the world; I have always taught in synagogues and in the temple, where all Jews come together; I have said nothing secretly. 21Why do you ask me? Ask those who have heard me, what I said to them; they know what I said." 22When he had said this, one of the officers standing by struck Jesus with his hand, saying, "Is that how you answer the high priest?" 23Jesus answered him, "If I have spoken wrongly, bear witness to the wrong; but if I have spoken rightly, why do you strike me?"
John 18:19-23 (RSV)