John 3:3-5

ISV(i) 3 Jesus replied to him, “Truly, I tell you emphatically, unless a person is born from above he cannot see the kingdom of God.”
4 Nicodemus asked him, “How can a person be born when he is old? He can’t go back into his mother’s womb a second time and be born, can he?”
5 Jesus answered, “Truly, I tell you emphatically, unless a person is born of water and Spirit he cannot enter the kingdom of God.