The legs of a lame man hang useless, and so does a proverb in the mouth of fools.
In context
5Answer a fool according to his folly, or he will be wise in his own eyes. 6Whoever sends word by the hand of a fool cuts off his own feet and drinks down violence. 7The legs of a lame man hang useless, and so does a proverb in the mouth of fools. 8Like binding a stone into a sling is giving honor to a fool. 9Like a thornbush that comes up in a drunkard’s hand is a proverb in the mouth of fools.
