Judges were supposed to administer justice without conditions, but this judge does not treat the woman justly. Instead, she has to beg many times for the judge to do the right thing. Therefore, the judge is referred to as "unjust." (See: [[rc://en/tw/dict/bible/kt/justice]] and [[rc://en/tw/dict/bible/kt/unjust]])
Luke occasionally contrasts these two groups of people in his gospel. The Pharisees considered themselves to be the clearest examples of righteousness and tax collectors to be very sinful, the clearest examples of unrighteousness. (See: [[rc://en/tw/dict/bible/kt/righteous]], [[rc://en/tw/dict/bible/kt/unrighteous]] and [[rc://en/tw/dict/bible/kt/sin]])
The Pharisee's prayer is not truly directed at God, so what he does is not really prayer. He wrongly thinks he is praying, but he is really only speaking so that other people will hear him and think he is holy.
There are times when the New Testament gives specific instructions or commands that always apply to all Christians. At other times, its instructions are more general or even as hyperbole. For example, when Jesus says, "Sell your possessions," he is not speaking to all Christians in all places at all times, but all Christians should remember that they are only stewards of everything they receive from God, and he may ask them to give them up at any time. (See: [hyperbole](rc://en/ta/man/translate/figs-hyperbole))