Proverbs Of Solomon Part 2 (Proverbs 15:22 to Proverbs 22:16).
At this point there is a sudden switch from proverbs which contrast one thing with another, which have been predominant since Proverbs 10:1, to proverbs where the second clause adds something to the first. Whilst we still find some contrasting proverbs, especially at the beginning, they are not so common. This may suggest a deliberate intention by Solomon to separate his proverbs into two parts.
Furthermore such a change at this point would also be in line with seeing verse Proverbs 10:1 and Proverbs 15:20 as some kind of inclusio. The first opened the collection with ‘a wise son makes a glad father, but a foolish son is a grief to his mother' (Proverbs 10:1), whilst Proverbs 15:20 may be seen as closing it with the very similar ‘a wise son makes a glad father, but a foolish man despises his mother'. Proverbs 15:21 may then be seen as conjoined with Proverbs 15:20 and as a kind of postscript summing up the fool and the wise who have been in mind throughout the proverbs up to this point.
Proverbs 15:22, in fact, provides a particularly suitable introduction to a new section with its emphasis on the need for a ‘multitude of counsellors', who can partly be found in the authors of the proverbs which follow (Solomon and the wise men).