Descriptions of traits of narcissists* (those with insolent pride, see here) can benefit us in two ways.  First, the traits will help us understand and even predict the behavior of someone we know to be a narcissist.  But also, the traits will help us to recognize narcissists when we encounter them.

The narcissistic trait in this Proverb is that they “will not listen” to rebuke.  They attempt to refuse or even shut down even the slightest objection to their plans or actions.  This may include pushing back surprisingly hard against any hint that what they are saying or doing is not correct.  Or it could be simply dismissing a suggestion out of hand, with a bit of a condescending tone (hence the term scoffer).   “Will not listen” could be somewhat passive, but it also could take a very aggressive form.

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These actions may be based on their strong determination to get their own way, their belief that they are fundamentally always right, or a strong drive to refuse anyone else telling them what to do (resistance of any authority over them).

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So, when you encounter someone who reacts in an aggressive and condescending way to what should have been a normal discussion point, you might be dealing with a narcissist.  And once you can recognize that, it will radically alter how you deal with that person.

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*   Narcissist is a colloquial term for what the Bible calls “insolent pride”  (see here)

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**  Scoffer is one of the terms used in the Bible for narcissists  (see here)