John 19:9

“And went again into the judgment hall, etc.] From whence he came out, taking Jesus along with him, in order to interrogate him alone upon this head: and saith unto Jesus, whence art thou? meaning not of what country he was, for he knew he was of the nation of the Jews; nor in what place he was born, whether at Bethlehem or at Nazareth, for this was no concern of his; but from whence he sprung, who were his ancestors, and whether his descent was from the gods, or from men; and if from the former, from which of them; for as Pilate was an Heathen, he must be supposed to speak as such: but Jesus gave him no answer; for his question was frivolous, and deserved none; and besides, he was not worthy…”

“and went again into the judgment hall, and saith to Jesus, Whence art thou?--beyond all doubt a question relating not to His mission but to His personal origin. Jesus gave him no answer--He had said enough; the time for answering such a question was past; the weak and wavering governor is already on the point of giving way.”

“Whence art thou? - See the notes at John 7:27. Pilate knew that he was a Galilean, but this question was asked to ascertain whether he claimed to be the Son of God - whether a mere man, or whether divine. Jesus gave him no answer - Probably for the following reasons: Jesus had already told Pilate Jesus’ design, and the nature of his kingdom, John 18:36-37. Jesus had said enough to satisfy Pilate of Jesus’ innocence. Of that Pilate was convinced. Pilate’s duty was clear, and if he had had firmness to do it, he would not have asked this. Jesus, by his silence, therefore rebuked Pilate for his lack of firmness, and his unwillingness to do what his conscience told him was right. It is not…”

“Whence art thou? - That is, whose son art thou? John 19:11”

“Whence: Joh 8:14, Joh 9:29, Joh 9:30; Jdg 13:6 But: Psa 38:13-15; Isa 53:7; Mat 27:12-14; Mar 15:3-5; Act 8:32, Act 8:33; Phi 1:28 John 19:10”