Lord Jesus used this formula to hide his identity and destiny (Son), when they rejected Jesus, they were rejecting the kingdom of God, Jesus said: the kingdom of God is among you.
In this parable Jesus makes a simultaneous wedding king with the kingdom of God, Jesus is constantly inviting men to come to his presence, and to turn his heart to him.
Behold, I stand at the door and knock, if anyone hears my voice and opens the door, I will enter into it, and have dinner with him, and with me. (Revelation 3:20)
certainly in this passage the author teaches us that the guests did not attend the call of invitation, which were no longer fit to come to the party, so the owner of the party uses another plan and orders to abuse all who find in the way. We are Blessed to hear the voice of God.