“What is the kingdom of God like?” (v20). Jesus was constantly overturning people’s ideas about what God’s kingdom was like and what kind of attitudes and behaviors reflected that kingdom. He rebuked the religious leaders who were so concerned about protecting the Sabbath that they forgot about mercy (v16). He said that the kingdom can’t be imposed from the outside, but instead grows organically like a mustard seed, or leaven, from very small to powerfully extensive (v19-20).
“Some are last who will be first, and some are first who will be last" (v30). Our goal isn’t to be “first” or righteous in the eyes of people, but to truly know and love our Savior (v24-29).