One who believes in the Son has eternal life, but one who disobeys{The same word can be translated "disobeys" or "disbelieves" in this context.} the Son won't see life, but the wrath of God remains on him."
Now Jesus knew all things and He knew what was in the heart of Nicodemus and He knew foremost in the man's heart was, "How can I enter into this kingdom of God?" And so Jesus came directly to the issue that was upon the heart of Nicodemus, and He said unto him,