John 3:1–21 tells of Jesus' nighttime conversation with Nicodemus, a Pharisee, about being born again. Jesus explains that entering God's kingdom requires spiritual rebirth through the Spirit, not just physical birth. He reveals God's great love for the world, shown by sending His Son so that whoever believes may have eternal life. The passage contrasts light and darkness, calling people to believe in Jesus and live in the light of truth.
