Nathanael answered him, "Rabbi, you are the Son of God! You are King of Israel!"

 Let us take a simple human analogy. If we want to know what someone really thinks and feels about something, and if we are unable to approach the person ourselves, we do not go to someone who is merely an acquaintance of that person, to someone who has known him only a short time; we go to someone whom we know to be an intimate friend of many years' standing. We know that he will really be able to interpret the mind and the heart of the other person to us. 