Great Banquet

Some think that this parable of a banquet in Matthew and Luke is not an authentic parable of Jesus. If Jesus told this parable, the point may be a countercultural banquet that powerless people are brought to the party eventually. This parable is shocking to Jesus’s audience because, given the ancient meal culture, no one can easily reject the host's invitation. More unusual is the host’s decision to bring in the poor, the lame, and the blind to this party. Does this parable challenge the usual meal culture in Jesus’s time? How is the reign of God related to the host in this parable?