What is Truth?

John 18:36-37  (The Living Bible) 

Jesus answered (Pilate at his trial), "I am not an earthly king... my Kingdom is not of the world." Pilate replied, "But you are a king then?" "Yes," Jesus said. "I was born for that purpose. And I came to bring truth to the world. All who love the truth are my followers."

Revelation 12:9-11  (King James Version)
And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.  And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night.  And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death. 

John 10:10  (The Amplified Bible)
The thief (Satan) comes only in order to steal and kill and destroy. I (Jesus) came that they may have and enjoy life, and have it in abundance (to the full, till it overflows).

Luke 18:17  (New International Version)  
I tell you the truth, anyone who will not receive the kingdom of God like a little child will never enter it."

John 3:3  (New International Version)  
In reply Jesus declared, "I tell you the truth, no one can see the kingdom of God unless he is born again. "

1 John 2:27  (The Living Bible)
But you have received the Holy Spirit, and he lives within you, in your hearts, so that you don't need anyone to teach you what is right. For he teaches you all things, and he is the Truth, and no liar; and so, just as he has said, you must live in Christ, never to depart from him.