Pilate to Jesus, "What is truth?"

Why did Jesus come to earth?

33 So Pilate entered his headquarters again and called Jesus and said to him, “Are you the King of the Jews?” 34 Jesus answered, “Do you say this of your own accord, or did others say it to you about me?” 35 Pilate answered, “Am I a Jew? Your own nation and the chief priests have delivered you over to me. What have you done?” 36 Jesus answered, “My kingdom is not of this world. If my kingdom were of this world, my servants would have been fighting, that I might not be delivered over to the Jews. But my kingdom is not from the world.” John 18:33-36 ESV

My question is answered in the next verse,

Then Pilate said to him, “So you are a king?” Jesus answered, “You say that I am a king. For this purpose I was born and for this purpose I have come into the world—to bear witness to the truth. Everyone who is of the truth listens to my voice.” John 18:37 ESV

Jesus said that His earthly purpose was to bear witness to the TRUTH.

Then Pilate asked,

Pilate said to him, “What is truth?” John 18:38 ESV

If you research Pilate's question in the Scriptures, you will find that Truth is revealed in the Old and New Testaments as the Word of God, the Bible, even as God himself. This, of course, leads me to these verses,

In the beginning was the Word, and the Word was with God, and the Word was God. John 1:1 ESVAnd the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth. John 1:14 ESV