John in 21: Chapter 3
God sent his Son into the world not to judge the world, but to save the world through him. John 3:17
Read today's passage: John 3:1-36
Two worlds. The world of God and the world of humans. At the beginning of this chapter they seem utterly separate and unique. Nicodemus says that Jesus must be from God because of the things He does. Jesus counters by saying you can't really know about God's Kingdom unless you've been born again. Impossible, right? The barrier between the worlds stands--but not if someone breaks through.
"No one has ever gone to heaven and returned. But the Son of Man has come down from heaven" (3:13). Jesus broke that barrier. Jesus, God the Son, became Jesus, God in the flesh, the Son of Man. But He didn't come for a sightseeing trip. "And as Moses lifted up the bronze snake on a pole in the wilderness, so the Son of Man must be lifted up, so that everyone who believes in him will have eternal life" (vv. 14-15).
There is a way for us with fleshly human bodies to live forever, to break through into the world of God. And that is by believing in Jesus. This is such an important concept that the next three verses state this truth in three different ways, and then once more in verse 36. The way to be born again, to be born into the Kingdom of God is clear: "everyone who believes in him will have eternal life" (v. 15).