Ecclesiastes 8:10; Ecclesiastes 9:14-15

10 And so I saw the wicked buried , who had come and gone from the place of the holy, and they were forgotten in the city where they had so done : this is also vanity.
14 There was a little city, and few men within it; and there came a great king against it, and besieged it, and built great bulwarks against it: 15 Now there was found in it a poor wise man, and he by his wisdom delivered the city; yet no man remembered that same poor man.