Proverbs 26:7 in the King James Version
The legs of the lame are not equal: so is a parable in the mouth of fools.
Context
6 One who sends a message by the hand of a fool is cutting off feet and drinking violence.
7 Like the legs of the lame that hang loose, so is a parable in the mouth of fools.
8 As one who binds a stone in a sling, so is he who gives honor to a fool.