Christ pictures to us in this Gospel what his kingdom is and what takes place in it, how it is governed and what it accomplishes. Here you learn that there is a kingdom upon the earth and that it is invisible, and that it cleaves to and rests upon the Word of God alone. Christ does not say that he wishes his disciples to follow him up into heaven at once; but that he will send them the Holy Spirit and that he departs from them for the very purpose of sending them the Holy Spirit, in order that thereby his kingdom may be further developed.