What is Truth?

This is the best time of the year for a believer as we celebrate the death, burial, and resurrection of Jesus Christ. Why? Because his story becomes our story and we experience new life in him. "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.' Pilate said to him, 'What is truth?'" John 19:37,38 Why is "Jesus" spelled with a "J" if there wasn't on in the original Hebrew and Greek?A caller asks about the confusion over end-times and the rapture.Is the sin nature still active in us?Please explain Matthew 5:38 "But if anyone slaps you on the right cheek, turn to him the other also...."