The high priest then asked Jesus of His disciples, and of His doctrine. – John 18:19

And the high priest arose, and said unto Him, Answerest Thou nothing? …But Jesus held His peace. – Matthew 26:62,63

Caiaphas, the high priest came in; he began at once to interrogate the Lord before the public trial doubtless with the view of catching Him in His speech. The high priest asked Him first of His disciples. We do not know what questions he asked; perhaps they were something like these: “What meanest Thou, to allow a rabble to follow Thee wherever Thou goest? Who art Thou, that Thou shouldst have twelve persons always attending Thee and calling Thee Master? Dost Thou intend to make these the leaders of a band of men? Are these to be Thy lieutenants, to raise a host on Thy behalf? Or dost Thou pretend to be a prophet, and are these the sons of the prophets who follow Thee, as Elisha did Elias Moreover, where are they? Where are Thy gallant followers? If Thou art a good man, why are they not here to bear witness to Thee? Where are they gone? Are they not ashamed of their folly, now that Thy promises of honor all end in shame?” The high priest “asked Him of His disciples.” Our Lord Jesus on this point said not a syllable. Why this silence? Because it is not for our Advocate to accuse His disciples. He might have answered, “Well dost thou ask, ‘Where are they?’ the cowards forsook Me; when one proved a traitor, the rest took to their heels. Thou sayest, ‘Where are My disciples?’ there is one yonder, sitting by the fire, warming his hands, the same who just now denied Me with an oath.” But no, He would not utter a word of accusation; He whose lips are mighty to intercede for His people, will never speak against them. Let Satan slander, but Christ pleads. The accuser of the brethren is the prince of this world: the Prince of peace is ever our Advocate before the eternal throne. ~ C.H. Spurgeon

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