…And he was speechless. – Matthew 22:12

Why is he silent? Surely it was because he was convicted of open, undeniable disloyalty…He was speechless; he could not have chosen a worse place, nor a more impertinent method of ventilating his disloyalty than that which he selected; there was nothing he could say in self-defense. At that moment, when the King looked him through and through, he saw the full horror of his position; his loins were loosed, like Belshazzar of old when he saw the handwriting on the wall; he saw now that his time to insult was over, and the day of retribution had come. He was taken in the very fact and could not escape. He had been guilty of a superfluity of naughtiness, of an unnecessary extravagance of wickedness in coming into the feast to air his pride. He had committed a suicidal intrusion. He might have kept himself away at any rate, and not have thrust himself into the Judge’s presence. He saw now that the cause of sedition was hopeless, the King was there, and he was in his power and none could rescue him. Why did he not burst into tears? Why did he not confess the wrong? Why did he not say, “My king, I have insulted thee, have pity upon me”? His proud heart would not let him. Sin made him incapable of repentance.

He stood speechless. It was not only that he had no excuse, but he would not confess his wrong. Have I anyone here in such a condition of heart, that while he has been sinning by making a false profession, and knows it, yet he sullenly refuses to confess his fault? Yield thee, man! Yield at once. Fall at the King’s feet at once. Even if you are not a hypocrite, if you have any suspicion that you are, fall down and say, “My King, make me sincere; I submit myself to Thy will, and am ready to put on the wedding badge; if there is any method by which I can honour Thy Son, I cavil not at it; let me wear His colours, and be known by all men to be truly a lover of the great Prince.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0976.cfm