John 3:3-5

³Jesus answered and told him, “Most assuredly, I tell you, unless one is born again, that person can’t see the kingdom of God.”

⁴Nicodemus asked Him, “How can a man be born when he is old? He can’t go back into his mother’s womb and be born, can he?”

⁵Jesus answered, “Most assuredly, I tell you, unless one is born of water and the Spirit, that one can’t enter the Kingdom of God.