While Jesus was fully man, he was telling the crowd that he was not like them in nature—in their spiritual nature. He was not born into sin. He was not born condemned to die. (Although his purpose in being born was to die). When Jesus says you are from below, you are of this world, he is speaking of the corrupt nature of humanity. You were born in darkness. You were born into this world dead into your sins. Listen to how Paul describes the believer in Jesus Christ before we placed our faith in Christ. Ephesians 2:1-3 says, “As for you, you were dead in your transgressions and sins, in which you used to live when you followed the ways of this world and of the ruler of the kingdom of the air, the spirit who is now at work in those who are disobedient. All of us also lived among them at one time, gratifying the cravings of our flesh and following its desires and thoughts. Like the rest, we were by nature deserving of wrath.” We were born into sin and because of that we craved the desires of evil—and were deserved the wrath of God. We deserved eternal separation from God. We deserved the judgment of hell.