13 This also have I seen as wisdom under the sun, and it was great unto me. 14 There was a little city, and few men within it; and there came a great king against it, and encompassed it, and built great bulwarks against it: 15 and there was found in it a poor wise man, who by his wisdom delivered the city; but no man remembered that poor man. 16 Then said I, Wisdom is better than strength; but the poor man's wisdom is despised, and his words are not heard. 17 The words of the wise are heard in quiet more than the cry of him that ruleth among fools. 18 Wisdom is better than weapons of war; but one sinner destroyeth much 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.