João 3

6 That which has birth from the flesh is flesh, and that which has birth from the Spirit is spirit.

7 Do not be surprised that I say to you, It is necessary for you to have a second birth.

8 The wind goes where its pleasure takes it, and the sound of it comes to your ears, but you are unable to say where it comes from and where it goes: so it is with everyone whose birth is from the Spirit.