Jesus answered him, "Most assuredly, I tell you, unless one is born anew,{The word translated "anew" here and in John 3:7 (anothen) also means "again" and "from above".} he can't see the Kingdom of God."

 John took that old story and used it as a kind of parable of Jesus. He says: "The serpent was lifted up; men looked at it; their thoughts were turned to God; and by the power of that god in whom they trusted they were healed. Even so Jesus must be lifted up; and when men turn their thoughts to him, and believe in him, they too will find eternal life." 