The scripture for the sermon is found in Luke 22:24-30.
Three lessons about authority from these verses:
Authority in this world is associated with privilege. It separates people (v. 25).
Authority in the kingdom of God means service (vv. 26-27). It brings people together.
A life of service will increase a person’s influence and authority in the kingdom of God (vv. 28-30). Jesus expected the disciples to continue his example of service, and the reward for such service was that they would sit on thrones and judge Israel.