The words of wise, etc. - Though generally the poor wise man is not heard (Ecc 9:16), yet “the words of wise men, when heard in quiet (when calmly given heed to, as in Ecc 9:15), are more serviceable than,” etc.
ruleth - as the “great king” (Ecc 9:14). Solomon reverts to “the rulers to their own hurt” (Ecc 8:9).