Why Nicodemus came to Jesus

Jhn 3:1  There was a man of the Pharisees, named Nicodemus, a ruler of the Jews:

Jhn 3:2  The same came to Jesus by night, and said unto him, Rabbi, we know that thou art a teacher come from God: for no man can do these miracles that thou doest, except God be with him.

Jhn 3:3  Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.

Jhn 3:4  Nicodemus saith unto him, How can a man be born when he is old? can he enter the second time into his mother's womb, and be born?

Jhn 3:5  Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.

Jhn 3:6  That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.

Jhn 3:7  Marvel not that I said unto thee, Ye must be born again.

Jhn 3:8  The wind bloweth where it listeth, and thou hearest the sound thereof, but canst not tell whence it cometh, and whither it goeth: so is every one that is born of the Spirit.

Jhn 3:9  Nicodemus answered and said unto him, How can these things be?