John 3:2-4

²He came to Jesus by night and said to him, “Rabbi, we know that you are a teacher come from God, for no one can do these signs that you do, unless God is with him.”

³Jesus answered him, “Most certainly I tell you, unless one is born anew, he can’t see God’s Kingdom.”

⁴Nicodemus said to him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb and be born?”