Why is it necessary to be born again?

The necessity of being born again is outlined in John 3:3, where Jesus explains to Nicodemus that one must be born again to see the kingdom of God. This transformation is not merely a reformation of behavior but an entirely new creation, signifying a profound spiritual rebirth. Enoch is used as an example, as his life changed significantly upon the birth of Methuselah, indicating that true change comes only through the grace of God that empowers individuals to live in accordance with His will and reflect His glory.