There is no injustice in God, the King. If He makes such a judgment, we know that it is in all fairness. This parable teaches that it is not enough to respond to the invitation, as though everything is then set for eternity. There is more to it, such as wearing the right garment, which is a symbol of righteousness. That does not come from just accepting the invitation. There is an additional responsibility for the individual to put on the righteousness of Christ.
