Now there was a man of the Pharisees named Nicodemus, a ruler of the Jews.

 3:7-13 Do not be surprised that I said to you: "You must be reborn from above. The wind blows where it will, and you hear the sound of it, but you do not know whence it comes and whither it goes. So is every one that is born of the Spirit." Nicodemus answered: "How can these things happen?" Jesus answered: "Are you the man whom everyone regards as the teacher of Israel, and you do not understand these things? This is the truth I tell you--we speak what we know, and we bear witness to what we have seen; but you do not receive our witness. If I have spoken to you of earthly things and you do not believe me, how will you believe me if I speak to you about heavenly things." No one has gone up to heaven, except he who came down from heaven, I mean, the Son of Man, who is in heaven. 