But Jesus held His peace. – Matthew 26:63

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. – John 18:20

The high priest asked Him concerning His doctrine-what it was that He taught-whether what He taught was not in contradiction to the original teachings of their great law-giver Moses-and whether He had not railed at the Pharisees, reviled the Scribes, and exposed the rulers. The Master gave a noble answer. Truth is never shamefaced; He boldly points to His public life as His best answer. “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. Why askest thou Me? ask them which heard Me, what I have said unto them: behold they know what I said.” No sophistries-no attempt at evasion-the best armor for truth is her own naked breast. He had preached in the market-places, on the mountain’s brow, and in the temple courts; nothing had been done in a corner. Happy is the man who can make so noble a defense. Little did that arch-knave Caiaphas gain by his crafty questioning. For the rest of the questioning, our Lord Jesus said not a word in self-defense; He knew that it availed not for a lamb to plead with wolves; He was well aware that whatever He said would be misconstrued and made a fresh source of accusation, and He willed, moreover, to fulfill the prophecy, “He is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so He openeth not His mouth.” But what power He exerted in thus remaining silent! Perhaps nothing displays more fully the omnipotence of Christ, than this power of self-control. Control the Deity? What power less than divine can attempt the task? Behold, my brethren, the Son of God does more than rule the winds and command the waves, He restrains Himself. And when a word, a whisper, would have refuted His foes, and swept them to their eternal destruction, He “openeth not His mouth.” If ever silence were more than golden, it is this deep silence under infinite provocation. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/0495.cfm