13 Here is another bit of wisdom that has impressed me as I have watched the way our world works. 14 There was a small town with only a few people, and a great king came with his army and besieged it. 15 A poor, wise man knew how to save the town, and so it was rescued. But afterward no one thought to thank him. 16 So even though wisdom is better than strength, those who are wise will be despised if they are poor. What they say will not be appreciated for long. 17 Better to hear the quiet words of a wise person than the shouts of a foolish king. 18 Better to have wisdom than weapons of war, but one sinner can destroy much that is good.

Matthew Henry's Commentary on Ecclesiastes 9:13-18

Commentary on Ecclesiastes 9:13-18

(Read Ecclesiastes 9:13-18)

A man may, by his wisdom, bring to pass that which he could never do by his strength. If God be for us, who can be against us, or stand before us? Solomon observes the power of wisdom, though it may labour under outward disadvantages. How forcible are right words! But wise and good men must often content themselves with the satisfaction of having done good, or, at least, endeavoured to do it, when they cannot do the good they would, nor have the praise they should. How many of the good gifts, both of nature and Providence, does one sinner destroy and make waste! He who destroys his own soul destroys much good. One sinner may draw many into his destroying ways. See who are the friends and enemies of a kingdom or a family, if one saint does much good, and one sinner destroys much good.