Listen up, recruits! This is John 3! Jesus is talking to Nicodemus, a Jewish leader who doesn't understand the concept of being born again. Jesus tells him that he must be born again, of water and the Spirit, in order to enter the kingdom of God. Jesus goes on to explain that the way of salvation is through faith in him, and that whoever believes in him will not perish, but have eternal life. Jesus compares himself to the wind, saying that no one knows where it comes from or where it goes, but it still exists. He then explains the difference between those who believe and those who don't, and that those who believe have eternal life. So, recruits, remember: Believe in Jesus and have eternal life, or don't and perish! Got it?