19 The high priest then asked Jesus of his disciples, and of his doctrine. 20 Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing. 21 Why askest thou me? ask them which heard me, what I have said unto them: behold, they know what I said. (John 18:19-21 KJV)
William Burkitt’s Commentary
Our Saviour being brought before Caiaphas the high-priest, he examines him concerning his doctrine, and his disciples, pretending him to be guilty of heresy in doctrine, and sedition in gathering disciples and followers.
Our Saviour answers, that as to his doctrine, he had not delivered it in holes and corners, but had taught publicly in the temple and synagogues; and that in secret he had said nothing, that is, nothing contrary to what he had delivered in public. Christ never willingly affected corners; he taught openly, and propounded his doctrine publicly and plainly in the world. A convincing evidence, that both he and his doctrine were of God.
Learn hence, 1. That it is not unusual for the best of doctrines to pass under the odious name and imputation of error and heresy. Christ’s own doctrine is here charges: The high-priest asked Jesus of his doctrine.
2. That the ministers of Christ who have truth on their side, may and ought to speak boldly and openly: I spake openly unto the world. “Veritas nihil erubescit, praeterquam abscondi.” Truth blushes at nothing, except at its being concealed; In secret, says Christ, have I said nothing.