John 3:1-6

Now there was a certain man among the Pharisees named Nicodemus, a ruler (member of the Sanhedrin) among the Jews, who came to Jesus at night and said to Him, “Rabbi (Teacher), we know [without any doubt] that You have come from God as a teacher; for no one can do these signs [these wonders, these attesting miracles] that You do unless God is with him.” Jesus answered him, “I assure you and most solemnly say to you, unless a person is born again [reborn from above—spiritually transformed, renewed, sanctified],he cannot [ever] see and experience the kingdom of God.” Nicodemus said to Him, “How can a man be born when he is old? He cannot enter his mother’s womb a second time and be born, can he?” 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.