Jesus finishes the Sermon on the Mount with two final lessons (Mt 7:21, 24-27).  He starts with the words above and closes with an analogy: those who act on His words are like a house built on the solid foundation of rock, while those who do not act on them are like a house that collapses and is ruined during a storm because it is built on the shifting sand.  The lessons tie neatly together.  Just calling on God without faith or the desire to increase it leaves the pleader nowhere.  Claiming belief in Jesus is hollow if one does not obey His teaching.  Anyone who professes belief in the Lord but then says that he is off the hook for any responsibility for his actions is misguided.  Yet many self-described Christians espouse this as doctrine.  What is belief?  Believing that Jesus existed?  Few seriously claim that Jesus did not walk the earth.  Believing Jesus was simply an exemplary teacher?  If that is all, chances are we would at best be talking about him mainly in philosophy classes, and probably derisively, since His claims of origin would have proven to be false.  Believing Jesus is Lord and God?  “Even the demons believe that and tremble” (Jas 2:19).  Jesus did come as man, He was (and is) the greatest teacher, and He is Lord and God.  As such, He must be Lord of every aspect of our lives.  Thus we must strive always conduct ourselves in a way that conforms to the way He commanded us to live.  Jesus’ words are plain.  Looking for loopholes elsewhere in the Bible is fruitless and a danger to one’s immortal soul.  Crying out “Lord, Lord” frequently should be our habit.  But in humility it must be followed by the firm desire and commitment to conform our wills to His just as He conformed His will perfectly to the Father’s.