St John 3:1-16

AND there was a man of the Pharisees, named Nicodemus, a ruler of the Jews. This man came to Jesus by night, and said to him: Rabbi, we know that thou art come a teacher from God; for no man can do these signs which thou dost, unless God be with him. Jesus answered, and said to him: Amen, amen I say to thee, unless a man be born again, he cannot see the kingdom of God. Nicodemus saith to him: How can a man be born when he is old? can he enter a second time into his mother's womb, and be born again? Jesus answered: Amen, amen I say to thee, unless a man be born again of water and the Holy Ghost, he cannot enter into the kingdom of God. That which is born of the flesh, is flesh; and that which is born of the Spirit, is spirit. Wonder not, that I said to thee, you must be born again. The Spirit breatheth where he will; and thou hearest his voice, but thou knowest not whence he cometh, and whither he goeth: so is every one that is born of the Spirit. Nicodemus answered, and said to him: How can these things be done? Jesus answered, and said to him: Art thou a master in Israel, and knowest not these things? Amen, amen I say to thee, that we speak what we know, and we testify what we have seen, and you receive not our testimony. If I have spoken to you earthly things, and you believe not; how will you believe, if I shall speak to you heavenly things? And no man hath ascended into heaven, but he that descended from heaven, the Son of man who is in heaven. And as Moses lifted up the serpent in the desert, so must the Son of man be lifted up: That whosoever believeth in him, may not perish; but may have life everlasting. For God so loved the world, as to give his only begotten Son; that whosoever believeth in him, may not perish, but may have life everlasting.