Nicodemus answered him, "How can these things be?"
God’s purpose in sending his Son into the world was positive. He wanted people to believe in him and so have eternal life. But if people prefer the darkness of their own sin to the light of salvation through Jesus, they bring judgment upon themselves by their own choice (John 3:16-18). Now that Jesus has come into the world, the difference between light and darkness, good and evil, is clearly seen. People either come into the light of Jesus for cleansing or remain in the darkness of their sin. Once they have come into God’s light, they see that every action of their new life is only the result of God’s work within them (John 3:19-21).