Jesus answered, "My kingdom is not of this world. If My kingdom were of this world, My servants would fight, so that I should not be delivered to the Jews; but now My kingdom is not from here." 

Pilate therefore said to Him, "Are You a king then?" 

Jesus answered, "You say rightly that I am a king. For this cause I was born, and for this cause I have come into the world, that I should bear witness to the truth.  Everyone who is of the truth hears My voice." 

Pilate said to Him, "What is truth?" And when he had said this, he went out again to the Jews, and said to them, "I find no fault in Him at all.

John 18:36-38   (NKJV)