John 18:37

Pilate did not understand the distinctions between Jesus’ kingdom and his own that Jesus was making. He did understand that Jesus was claiming to have a kingdom. Consequently he next tried to get Jesus to claim unequivocally that He was a king. Jesus admitted that He was a king, but He needed to say more about His reign if Pilate was to understand the nature of His kingship. Jesus had defined His kingdom negatively (John 18:36). Now He defined His mission as a king positively.

The main reason Jesus had come into the world was to bear witness to the truth. By this He meant that He came to reveal God (cf. 14:6). Jesus made subjects for His kingdom by revealing God, by calling on people to believe on Him, and by giving them eternal life. This prepared them to participate in His kingdom. Everyone who truly wanted the truth followed Jesus because His teachings had the ring of truth. Jesus’ words were an invitation for Pilate to listen to Him and to learn the truth. Jesus showed more interest in appealing to Pilate than in defending Himself. This desire for the welfare of others marks all of Jesus’ interviews in the fourth Gospel. [Note: Tenney, "John," p. 177.]