Cyrill of Alexandria
This parable guarantees that God will listen to the prayers of those who approach Him with genuine intention and perseverance, rather than with indifference or carelessness. Just as the persistent pleas of the vulnerable widow persuaded the unjust judge—who had no reverence for God nor concern for others—so that he ultimately granted her justice against his own wishes, how much more will the One who delights in mercy, despises wickedness, and continually supports His faithful ones respond to those who seek Him day and night, avenging them as His beloved children?
This parable assures us that the Lord listens to those who present their supplications with dedication, not in a casual or careless manner, but with unwavering commitment. The relentless appeals of the beleaguered widow ultimately compelled the unjust judge, who was indifferent to God and untroubled by human opinion (Luke 18:2). Even though it went against his wishes, he granted her plea. How much more will He, Who delights in mercy and detests wrongdoing, respond to those who earnestly seek Him and embrace those who cry out to Him tirelessly day and night (Luke 18:7)?