If I told you earthly things and you don't believe, how will you believe if I tell you heavenly things?
True, no person has ever gone up into heaven to learn all about God and his ways, but Jesus Christ has come down from heaven and shown people what God is like. He is God’s gift to the world. His death on the cross is God’s way of salvation, and if people under condemnation turn to him and believe, they will have eternal life (John 3:13-15).