Integrity is what we demand from others, aspire to in ourselves, and often fall short of. We fall short, but will find wholeness in the Son of Man.
When we stop clinging to what we know and what we are, we can go out into the world without fear, insecurity, resentment, and judgment, as true Children of God. The image of a playing child helps us see alternatives to our childish attitudes.
How is the riven social body, with its divisions between poor and rich, to be healed?
The Pharisees were not wrong to question Jesus, but as much as we might want to empathize with them, to agree that there are simply certain things good people do not do, Jesus rejects human propriety as an orienting standard. Jesus is talking about the human heart, something Christians today also must consider.