John 3:5-7

Jesus answered, “I assure you and most solemnly say to you, unless one is born of water and the Spirit he cannot [ever] enter the kingdom of God. [Ezek 36:25-27] That which is born of the flesh is flesh [the physical is merely physical], and that which is born of the Spirit is spirit. Do not be surprised that I have told you, ‘You must be born again [reborn from above—spiritually transformed, renewed, sanctified].’