John 3:6

"That which is born of the flesh is flesh; and that which is born of the Spirit is spirit."
John 3:6 (KJV)

Context from John 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?

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.

6

That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.

7

Marvel not that I said unto thee, Ye must be born again.

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.