Luke 18-1-8 contains a parable and an application that continue the theme of Jesus’ return. The parable forms the conclusion of 17:20-37. Jesus asks a searching question at the close of the parable — “when the Son of Man comes, will he find faith on earth?" (Luke 18:8). What’s the point? Disciples must pray with persistence while waiting for final vindication lest they become despondent during the period of delay when injustice abounds. Don’t lose heart, for justice will be served.