Luke
Luke 18:3ESV·traditional attribution

And there was a widow in that city who kept coming to him and saying, ‘Give me justice against my adversary.’

Matthew Henry Presbyterian @wholebiblehenry

This parable has its key hanging at the door; the drift and design of it are prefixed. Christ spoke it with this intent, to teach us that men ought always to pray and not to faint, Luk 18:1. It supposes that all God's people are praying people; all God's children keep up both a constant and an occasional correspondence with him, send to him statedly, and upon every emergency.

Commenting on Luke 18:1-8

John Gill Reformed Baptist @doctorgill

And there was a widow in that city,.... Poor and helpless, and none among men to counsel, direct, and assist her, and take her part: now as in the accommodation of this parable, the elect of God answer to this widow; such an one is rather pitched upon to represent the helpless, desolate, and forlorn condition they are in among men in this world, though...

Albert Barnes Presbyterian @notesbybarnes

Verse 3. A widow. This is a circumstance that gives increasing interest to the parable. Judges were bound to show peculiar attention to widows, . The reason of this was that they were defenseless, were commonly poor, and were liable to be oppressed by those in power. Avenge me.