The words of a man’s mouth are as deep waters... — i.e., the words of a “man,” properly so called, are as deep waters which cannot be easily fathomed; they are a copious stream, which flows from a never failing source; they are a fountain of wisdom which is never exhausted.
Related Commentaries of Proverbs 18:4
Proverbs 18:4
4 The words of a man's mouth are as deep waters, and the wellspring of wisdom as a flowing brook.