No one has gone up to heaven except the one who came down from heaven, the Son of man; 14 as Moses lifted up the snake in the desert, so must the Son of man be lifted up 15 so that everyone who believes may have eternal life in him. 16 For this is how God loved the world: he gave his only Son, so that everyone who believes in him may not perish but may have eternal life. 17 For God sent his Son into the world not to judge the world, but so that through him the world might be saved.