In the 37 times that Jesus describes the reign of God in the Gospels, not once is the kingdom of God like a kingdom of earth. Each time, Jesus tells them stories. Over and over again he roots the liberation of God in ordinary life, in what happens around us, not in throne rooms with princes and crowns but in baking bread and sowing seeds.
Melissa’s sermon was based on John 18:33-37. She also has a version of it online at https://sojo.net/articles/kin-dom-christ