We are met at the very threshold of that realm with a statement which is calculated to check our steps for the moment, and if we approach with a sense of knowing or possessing anything already, with a sense of contentment, of personal satisfaction, or with any sense other than that of needing to know everything, then this word should bring us to a standstill at once: "...no one knoweth the Son, save the Father..." Maybe we thought we knew something about the Lord Jesus, and that we had ability to know; that study, and listening, and various other forms of our own application and activity could bring us to a knowledge, but at the outset we are told that "...no one knoweth the Son, save the Father..." All that the Son is, is locked up with the Father, and He alone knows.