8618   prayerfulness
     8713   discouragement

Luke 18:1-5

     5743   widows
     7751   persuasion

Luke 18:1-8

     2042   Christ, justice of
     5350   injustice, hated by God
     8459   perseverance
     8613   prayer, persistence
     8653   importunity, to God

Luke 18:1-17

     2360   Christ, prayers of