The Parable Of The Persistent Widow
As the journey through the Perean wilderness continues, Jesus has delivered a powerful parable to His disciples to show them that they must always pray and not lose heart. He told the story of a vulnerable widow who continually petitioned an unjust judge for legal protection. Though the judge did not fear God or respect man, he eventually granted her request simply because her constant pleading was wearing him out.
The Master used this stark contrast to highlight the character of God. If an unjust judge will bring about justice due to persistence, how much more will a loving, righteous Father bring about justice for His elect who cry to Him day and night? As the darkness of the cross approaches, this teaching fortifies the disciples for the trials ahead.
— Luke 18:1 (LSB)