Two ways to miss out on the kingdom

Jesus' parable of the great banquet (Luke 14:15-24) - representing the kingdom of God - shows that there are two ways of missing out.

The first way - the emphasis of the parable - is through having wrong priorities. People give poor excuses for why they can't attend the banquet. All of these excuses underline that, in fact, they just consider other things to be of greater importance. So often people's rejection of Jesus and his invitation into the kingdom comes not through investigation or because they've come to the conclusion there isn't really a banquet. Instead, they have wrong priorities... which lead them missing out on the greatest banquet of all time, hosting by the God they were created to be in relationship with.

Perhaps the second way is hinted at in verse 23. 'Unworthy' people have to be compelled to come into the banquet - they consider themselves not good enough for the banquet. They don't realise that their invitation is not based upon their performance, but upon the goodness of the host.

How can we best speak of the kingdom to these two groups of people?