Jesus is preaching about enjoying a blessed god-like abundant full life living like God paralleled with a bad woe life full of grief living like the devil. So, here, to me, is his theme and point: IF YOU ARE A REAL DISCIPLE THIS IS THE LIFE YOULIVE. This sermon instructs you not only how to live a god-like life, but how to know with certainty if you are a real follower/disciple of Jesus Christ.