Abogado del Diablo said:
Yet . . . the whole point of the story is expressly stated in the first line, which is to encourage people to continue to entreat God with prayers. This would only make sense if, in fact, God were like the "unjust " judge in the parable.
Ok, I see what you are saying. There are lots of things where there is a polarized quality of something and then the absence of it. For example there is a truth, a lie, and no information at all. Or love, hate, and apathy. Hope, fear, ambivalence. Hot air, cold air, vacuum. So in this case there is possibility for a just judgement, an unjust judgement, or no judgement at all. It seems like you are combining an unjust judgement with none at all... or an unjust judge with a person who doesn't judge unless asked. To me, unjust means an unfairness, imbalance, bias, or partiality... and an unjust judge is a person who might create new injustices.
If you think about it, when we ask someone a question we are essentially asking for judgement. Maybe not to divide from an adversary, but for the judgement of our thoughts or for a situation. Like the other parable of knocking at the door... if we don't ask in prayer we might not get the answer.
Faith: I could write a long boring book on that word. I simply note it in the last line of the parable, and I see that two people who don't get along and persist to demand justice from each other may not have much of a relationship left. Most people cry for justice from their adversary, yet mercy for themselves. Rather than learn from each other and agree to disagree they may wish to be divided and isolated... where there is no faith left between them. Hence the need for the important aspects of forgiveness and mercy.
To me, the word judge is split in definition. It is one thing to judge and condemn or punish, and another to judge and just provide information. To me, the word 'rebuke' is an example of the latter. A person can toss away the rebuke but it still gives them key information from the judgement.
A couple of related verses that I like to contrast:
Luke 17:3 Take heed to yourselves: If thy brother trespass against thee, rebuke him; and if he repent, forgive him.
Luke 6:37-38 Judge not, and ye shall not be judged: condemn not, and ye shall not be condemned: forgive, and ye shall be forgiven. Give, and it shall be given unto you...
So in the first, we are told to rebuke a sin... and in the second we are told that if we don't judge, then we won't be judged. If you think about it, any judgement placed on the table with someone can instantly bring their judgement.
Sadly, the definition of the words judge and condemn are alternating too, and muddying it up between versions. But there is no parable of the unjust condemner and in an example like John 8:1-11 the word condemn is used for 'stoning' instead of judge.
More than you asked for and all my opinion of course, guided or misguided.