Luke 23:9

He was silent and did nothing, for Herod's unbelief deserved not to see Him, and the Lord shunned display. And perhaps typically in Herod are represented all the ungodly, who if they have not believed the Law and the Prophets, cannot see Christ's wonderful works in the Gospel.

(Mor. 22. c. 16.) From these words we ought to derive a lesson, that whenever our hearers wish as if by praising us to gain knowledge from us, but not to change their own wicked course, we must be altogether silent, lest if from love of ostentation we speak God's word, both they who were guilty cease not to be so, and we who were not become so. And there are many things which betray the motive of a hearer, but one in particular, when they always praise what they hear, yet never follow what they praise. (Mor. 10. c. 31.) The Redeemer therefore though questioned held His peace, though expected disdained to work miracles. And keeping Himself secretly within Himself, left those who were satisfied to seek for outward things, to remain thankless without, preferring to be openly set at nought by the proud, than be praised by the hollow voices of unbelievers. Hence it follows, And the chief priests and scribes stood and vehemently accused him. And Herod with his men of war set him at nought, and mocked him, and arrayed him in a white robe.

Accordingly he asks Him questions, making a sport of Him, and ridiculing Him. But Jesus, who performed all things prudently, and who, as David testifies, ordereth His words with discretion, (Ps. 112:5.) thought it right in such a case to be silent. For a word uttered to one whom it profiteth nothing becomes the cause of his condemnation. Therefore it follows, But he answered him nothing.