Luke 19:11

Because they thought] The multitudes thought that Jesus was going to Jerusalem to set up the Messianic kingdom at once. Jesus therefore explained by a parable that the kingdom would not be established till His Second Coming, and that even then not all the children of Abraham, but only the spiritually fit, would be admitted into it. This was the chief lesson to the multitudes, who expected that all Israelites would share in the future glory. To the disciples the lesson was that even among the saved there would be differences, and that, therefore, those who wished a great reward in the future kingdom of heaven must labour with all diligence in their various vocations on earth.