John 3:2-5

2He came to Jesus at night and said, “Rabbi, we know that you are a teacher who has come from God. For no one could perform the signs you are doing if God were not with him.”

3Jesus replied, “Very truly I tell you, no one can see the kingdom of God unless they are born again. The Greek for again also means from above; also in verse 7. ”

4“How can someone be born when they are old?” Nicodemus asked. “Surely they cannot enter a second time into their mother’s womb to be born!” 5Jesus answered, “Very truly I tell you, no one can enter the kingdom of God unless they are born of water and the Spirit.