One experience many of us have in common is listening to lectures in school. And it was no secret that if the person teaching kept making the same point over and over again, including in different lectures, you'd probably see that point again in an exam and perhaps in real life. We have that situation here.
Again, stress being placed on love and its importance. Basically the question is: "How can you be what you claim if love is not part of you?"
The Gospel tale of the man with the large supper illustrates how this works, and it works both ways. Most of you will recognize the art of the excuse being done by the originally invited guests. See then what happens to what would have been theirs.