The chapter begins with the person who isolates himself and seeks his own desire, someone who quarrels against all sound judgment. The fool takes no pleasure in understanding, only in airing his own opinion (vv. 1-2). The words of a person's mouth are deep waters, and the fountain of wisdom is a flowing stream (v. 4). Verses 5 to 8 show how damaging a fool's words are: his lips bring strife and his mouth is his ruin, and the words of a gossip are like tasty morsels that go down into the inner parts.
In the center of the chapter there is a contrast between two refuges. The name of the Lord is a strong tower where the righteous run and are safe (v. 10), while the rich man's wealth is a fortified city only in his imagination (v. 11). Before destruction the heart is proud, and humility comes before honor (v. 12). To answer before listening is folly and shame (v. 13); a person's spirit can sustain him in sickness, but a crushed spirit is hard to bear (v. 14).
The second half speaks of conflict and relationships. The first to present his case seems right until the other comes and examines him (v. 17). An offended brother is harder to win back than a strong city (v. 19). Death and life are in the power of the tongue (v. 21). Whoever finds a wife finds a good thing and obtains favor from the Lord (v. 22). And there are friends who only make company to their own harm, but there is a friend who sticks closer than a brother (v. 24).