John 3:1-13, are you born again or just religious?

In John chapter 3, verses 1 to 13, we encounter a profound conversation between Jesus and Nicodemus, a Pharisee and member of the Jewish ruling council. Nicodemus approaches Jesus under the cover of darkness, acknowledging Him as a teacher from God due to the signs and miracles He performed. Jesus responds by speaking of the necessity of being "born again" to enter the kingdom of God.