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. That which is born of flesh is flesh; and that which is born of the Spirit is spirit. Marvel not that I said unto thee, Ye must be born again. 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.
John 3: 5-8