Proverbs 25:26

A righteous man falling down before the wicked is as a troubled fountain, and a corrupt spring.

When good people compromise, yield, or fail to stand up for right and bow down before the wicked, it is like a muddied spring or a polluted well. When someone who is righteousness looks for purity and cleanliness around them, they will be disappointed because it will be difficult to find in this world.