John 3:3, 5-6

[3] Jesus answered, “I assure you, everyone must be born again. Anyone who is not born again cannot be in God’s kingdom.”

[5] Jesus answered, “Believe me when I say that everyone must be born from water and the Spirit. Anyone who is not born from water and the Spirit cannot enter God’s kingdom. 

[6] The only life people get from their human parents is physical. But the new life that the Spirit gives a person is spiritual.

https://bible.com/bible/406/jhn.3.3-6.ERV