Proverbs 26:2, 4-5
Proverbs 26:2 NIV
Like a fluttering sparrow or a darting swallow, an undeserved curse does not come to rest.
Proverbs 26:4-5 NIV
Do not answer a fool according to his folly, or you yourself will be just like him. Answer a fool according to his folly, or he will be wise in his own eyes.