Ecclesiastes 9:15
Now a poor wise man was found in it, and he by his wisdom delivered the city; yet no man remembered that same poor man.
World English Bible (Public Domain)
In context
Before · Ecclesiastes 9:13–14
13I have also seen wisdom under the sun in this way, and it seemed great to me. 14There was a little city, and few men within it; and a great king came against it, besieged it, and built great bulwarks against it.
15Now a poor wise man was found in it, and he by his wisdom delivered the city; yet no man remembered that same poor man.