Verses 1-10: Nicodemus’ Visit and the New Birth. Nicodemus approaches Jesus by night, acknowledging His divine authority. Jesus teaches the necessity of being born again, explaining spiritual rebirth through water and the Spirit, which confounds Nicodemus.
Verses 11-21: Jesus Explains Salvation and Light versus Darkness. Jesus contrasts earthly and heavenly knowledge, declares His unique heavenly origin, and explains the purpose of His coming: to save rather than condemn. The famous declaration of God’s love and the offer of eternal life through belief in the Son is given, alongside the condemnation of rejecting the light.
Verses 22-36: John the Baptist’s Testimony about Jesus. The chapter closes with John the Baptist affirming Jesus’ superiority, emphasizing that Jesus must increase while John decreases, and reiterating the necessity of faith in the Son for eternal life.