The wind{The same Greek word (pneuma) means wind, breath, and spirit.} blows where it wants to, and you hear its sound, but don't know where it comes from and where it is going. So is everyone who is born of the Spirit."

 It is characteristic of Jewish style to say things twice, the second way explaining and amplifying the first. Any verse of the Psalms will show us this Jewish habit of what is technically known as parallelism: 