What did jesus tell nicodemus?

I tell you the solemn truth, unless a person is born from above, he cannot see the kingdom of God. I tell you the solemn truth, unless a person is born of water and spirit, he cannot enter the kingdom of God. What is born of the flesh is flesh, and what is born of the Spirit is spirit. Do not be amazed that I said to you, 'You must be born from above.' The wind blows wherever it wishes, and you hear the sound of it, but do not know where it comes from and where it is going. So it is with everyone who is born of the Spirit. I tell you the solemn truth, we speak about what we know and testify about what we have seen, but you people do not accept our testimony. If I have told you people about earthly things and you don't believe, how will you believe if I tell you about heavenly things? No one has ascended into heaven except the one who descended from heaven-the Son of Man. Just as Moses lifted up the serpent in the desert, so must the Son of Man be lifted up, so that everyone who believes in him may have eternal life.