Let's take a look at the stories as a whole. What seems to be the main themes?
The first thing that strikes me is the aggressiveness of God in pursuing failing humanity, regardless of humanity's condition or how they got into that condition.
The second thing this leads me to consider is how pitiful is our own righteousness. And, how humble I need to be about pride in living to any set of rules. I don't think I can out-Pharisee the Pharisees in keeping rules and Christ's stories are pointed right at the Pharisees.