John 18:19-21

Then the high priest questioned Jesus about His disciples and about His teaching. [Matt 26:59-68; Mark 14:55-65; Luke 22:63-71] Jesus answered him, “I have spoken openly to the world. I always taught in a synagogue and in the temple [area], where all the Jews habitually congregate; and I said nothing in secret. Why question Me? Question those who have heard what I said to them. They know what I said.”