As this parable opens, Luke reminds us that Jesus is making his way to Jerusalem. This journey, this exodus as Luke refers to it, makes up the entire middle of the Gospel. He is teaching as he goes.
A question from the crowd gives Jesus the chance to make a prophetic statement. Luke uses this question device a number of times in his Gospel.
A few weeks ago, the question “What must I do to inherit eternal life?” led to the parable of the Good Samaritan. The question about will only a few be saved uses typical Christian language about salvation but also expresses the Jewish concern about whether everyone who calls himself a Jew is actually faithful to the covenant. This was a concern of the Pharisees. Is it a concern of yours?
Follow the way that Jesus proclaims.